MA333N Fluid Power Products for Motion Control (Including Aeros

CURRENT INDUSTRIAL REPORTS SERIES
2007

MA333N — FLUID POWER PRODUCTS FOR MOTION CONTROL
(INCLUDING AEROSPACE) (SHIPMENTS)
DEFINITIONS AND SPECIAL INSTRUCTIONS

1. Scope of survey

b. Quantity and value of shipments

This survey covers fluid power products manufactured in
the United States. Fluid power productions use
compressed fluid (liquid or gas) as a medium for
transferring power and controlling motion. The focus of
this report is fluid power products for motion control
applications (some additional categories for non-motion
control products are included to help ensure data integrity
by keeping any of these products that may be reported
separate).

The figures on quantity and value of shipments should
include physical shipment of products sold or shipped,
whether for domestic or export sale. The value
represents the net sales price, f.o.b. plant, net of
discounts, allowances, freight charges and returns.

The following products should be excluded from reporting:

• Physical shipments of products manufactured and
shipped from the reporting location to customers
and distributors.

• plumbing and heating valves and specialities
(3329191100);
• metal fittings, flanges and unions for piping systems
(3329193100)
• automatic regulating and control valves (332911F100);
• solenoid-operated valves not used in a fluid power
motion control system (332911H100);
• nuclear valves (332911D100);
• other industrial valves (3329111100-332911B100);
• non-fluid power industrial pumps and pumping
equipment;
• pumps for farm and home use (33391111003339115100);
• constant speed drivers (3336123100 and 3336127100).

2. Figures to be reported
Companies with more than one establishment manufacturing the products covered by this survey are requested to
complete a separate report form for each location. If you
have not received a separate form for each of your
establishments, please call the contact listed on the report
form or write to the U.S. Census Bureau for additional
forms.

Do not combine product lines.
In addition, these figures should include:

• Physical shipments of products manufactured and
shipped for private labeling by another company.
The figures on quantity and value of shipments should
NOT include:
• Physical shipments of products received from
another division of your company and resold
without further manufacture should not be included
in shipments (this is regardless of whether or not
they were imported). Further manufacture includes
assembly of parts into finished fluid power products
(pumps, valves, cylinders, etc).
Note: The quantity and value of hydrostatic
transmissions and power units should be reported
into their respective categories. The quantity and
value for the pumps, motors, valves, and prime mover
used in the hydrostatic transmissions and power
units should also be reported into their respective
categories for these products if manufactured in the
U.S. by your company. The quantity and value of
hydrostatic transmissions and power units will not be
added into overall report totals.

a. Resales
c. Columnar structure of report
Products bought and resold without further manufacture
should not be included in shipments (this is regardless of
whether or not they were imported). Further manufacture
includes assembly of parts into finished fluid power
products (pumps, valves, cylinders, etc).

When entering your figures on the original report,
please be sure to report the information in the correct
columns.
Column 1 — Total Quantity
Column 2 — Total Shipments Value

Page 1 of 11

CURRENT INDUSTRIAL REPORTS SERIES
MA333N

DEFINITIONS AND SPECIAL INSTRUCTIONS — Continued

2. Figures to be reported - c. Columnar structure of
report - Continued

cylinder is used in severe duty applications like the steel
mills from which it derived its name.

Section I — Report all fluid power valves for motion
control, including parts.

Cylinder, rodless (shuttle) — A linear actuator with a rod
that never leaves its case, that is sealed lengthwise.
Typically used in position control applications.

Section II — Report all fluid power fittings and
assemblies for motion control.

Cylinder, telescoping — A linear actuator with nested
tubular rod segments that provide a long working stroke
in a short retracted envelope.

Section III — Report all fluid power filters for motion
control, including parts.
Section IV — Report all fluid power cylinders, rotary
actuators, accumulators, cushions, and non-vehicular
shock absorbers, including parts.
Section V — Report all fluid power pumps and motors for
motion control, including parts.
3. Definitions
Accumulators (hydraulic only) — Devices that store
hydraulic fluid under pressure as a source of fluid power
Actuators — Devices that convert fluid power into linear
or rotary mechanical force. Linear types are typically
referred to as cylinders. Rotary types are referred to as
rotary actuators and motors. Motors have shafts that
rotate continuously in the same direction. Rotary
actuator shafts do not rotate continuously. Typically, the
shafts rotate a certain number of degrees before rotating
in the opposite direction to their point of origin.
Air dryer — A device for reducing the moisture vapor
content of the compressed air in a pneumatic system
Bulk hose— A hose and/or tubing to which fittings have
not been attached.
Assembly — A length of hose and/or tubing that fittings
have been attached to.
Cushion — A device that provides controlled resistance
to non-linear motion.
Cylinder, electrohydraulic — A hydraulic, linear actuator
that produces a continuously variable mechanical
output, as a function of a continuously variable
electronic input signal (voltage or current).
Cylinder, mill type — A linear actuator that has circular
flanges welded to the cylinder barrel ends. This type of

Cylinder, threaded/weld fused combination — A linear
actuator with one threaded end and one weld fused end.
Cylinder, tie rod — A linear actuator with head and cap
end closures that are secured by tie rods.
Filter (filter assembly) — A device whose primary
function is the retention of insoluble contaminants in a
fluid by a porous media.
Filter element — That part of a filter that retains
contaminants. Some elements are permanent (reusable
or cleanable) and others are disposable (nonreusable).
Disposable elements must eventually be replaced.
Fittings — Devices used to connect hoses and tubing to
components (valves, cylinders, motors, pumps) of a fluid
power system. They are constructed from metal or
plastic, and are sometimes referred to as connectors or
couplings.
Gerotor/Gerolor — A special type of internal gear motor
where the internal gear is always in sliding contact with
the external gear.
Hydrostatic transmission —A device that combines a
hydraulic pump with an hydraulic motor. The quantity
and value of hydrostatic transmissions should be
reported to the hydrostatic transmission line. The
quantity and value of pumps and motors sold together
as hydrostatic transmissions should also be reported
separately in the relevant pump and motor categories, if
manufactured in the U.S. by your company.
Intensifier — Devices driven by a low pressure fluid to
produce fluid at a higher pressure.
Lubricator — A device that adds controlled or metered
amounts of lubricant into a pneumatic system.
Manifold (manifold assembly) — A fluid conductor that
can provide multiple connection ports. In a fluid power

Page 2 of 11

CURRENT INDUSTRIAL REPORTS SERIES
MA333N

DEFINITIONS AND SPECIAL INSTRUCTIONS — Continued
Pump, reciprocating — A pump that uses pistons to
create a partial vacuum to draw hydraulic fluid through
the pump inlet. The return strokes of the pistons unseat
outlet check valves and force the fluid through the
pump outlet.

3. Definitions — Continued
system, manifolds are typically used as housings for
cartridge valves.
Motor — A device that transforms fluid power into rotary
mechanical force. Motors can be hydraulic or pneumatic.
Motor, axial piston — A motor with several parallel pistons
arranged around a common axis.
Motor, external gear — A motor that has only external
gears and no internal gear.
Motor, internal gear — A motor with an internal gear that
meshes with one or more external gears. See also
gerotor/gerolor.
Motor, radial piston — A motor with several pistons
arranged to operate radially.
Motor, vane — A motor with multiple vanes that cause
rotation of internal member when under pressure.
Power unit —A device that combines a hydraulic pump
with a prime mover (usually an electric motor), and
hydraulic valves. As is done for hydrostatic transmissions,
the quantity and value of power units should be reported
to the power unit line. The quantity and value of pumps,
prime movers and valves should also be reported to those
respective categories, if manufactured in the U.S. by your
company.
Pump, axial piston — A reciprocating pump with several
parallel pistons arranged around a common axis.
Pump, external gear — A rotary pump that has only
external gears, and no internal gear.
Pump, internal gear — A rotary pump that has an internal
gear in engagement with one or more external gears. An
internal gear pump generally has external gears that
rotate on a fixed axis. A gerotor pump differs from other
internal gear types in that its internal gear is always in
sliding contact with the external gear.

Pump, rotary — A pump that uses gears or vanes to
cause rotary motion that moves hydraulic fluid from the
pump inlet to the pump outlet.
Pump, vane — A rotary pump with multiple vanes within
a supporting rotor.
Reservoir, hydraulic — A container for storage of
hydraulic fluid under pressure.
Sealing devices— A dynamic or static device for
preventing fluid leakage (air or liquid) to the external
environment or within sections of a component.
Valves, cartridge — Valves with working parts
contained in a cylindrical body. The body must be
inserted into a housing (usually a manifold) for use.
Ports through the body of the valve align with ports in
the housing.
Valves, electrohydraulic — Valves that use
continuously variable electronic input (voltage or
current) to produce a continuously variable hydraulic
output.
Valves, manually operated — Valves actuated by
means of a hand lever, or other manual energizing
device.
Valves, mechanical — Valves that are actuated by
cams, levers, rollers, screws, springs, stems or other
mechanical energizing devices. Should not include
hydraulically or pneumatically actuated valves for nonfluid power applications.
Valves, relief — Direct acting or pilot operated valves
that are used to prevent a hydraulic system from
exceeding its maximum pressure limits.
Valves, remote pilot — Pilot operated valves that are
controlled remotely through the use of air pressure.
Valves, solenoid — Valves that are operated by a
solenoid.

Pump, radial piston — A reciprocating pump with several
pistons arranged radially within the pump chamber.

Page 3 of 11

CURRENT INDUSTRIAL REPORTS SERIES
DEFINITIONS AND SPECIAL INSTRUCTIONS — Continued
4. Comparability

Data reported in this survey should correspond to data reported in the
Economic Census - Manufacturing Sector form. The sum of values for
item codes shown in column (a) should correspond to dollar values
reported under product codes indicated in column (b) below.
Current Industrial
Reports
(Form MA333N)

Economic Census Manufacturing Sector

Item codes
(a)

Product codes
(b)

1201 through 1219

3329125100

1221 through 1249

3329127100

1251 through 1269

3329129100

1271 through 1279

332912B100

1281 through 1289

3329121100

1291

3329123100

1293, 1295

332912D100

2201 through 2209

332912H100

2211 through 2221

332912J100

2241 through 2251

332912L100

2261 through 2265

332912N100

2271 through 2275

332912F100

3301 through 3309

3339993100

3311 through 3323

3339994100

3325, 3327

3339996100

3340, 3347

3339998870
3339998880

4501 through 4519

3339951100

4601 through 4619

3339953100

4841 through 4847,
4893

3339955100

4851 through 4877

3339957100

5504 through 5517

3339961100

5534 through 5537

3339963100

5545 through 5571

3339965100

5581 through 5586

3339967100

5591 through 5597

3339969100

Page 4 of 11

CURRENT INDUSTRIAL REPORTS SERIES
REFERENCE LIST
FORM

MA333N
FLUID POWER PRODUCTS FOR MOTION CONTROL (INCLUDING AEROSPACE) (SHIPMENTS)

Product
code

Item
code

Item description

Section I — FLUID POWER VALVES (hydraulic and pneumatic valves and parts)
(Report quantity in number of units)
3329125100

NONAEROSPACE TYPE HYDRAULIC DIRECTIONAL CONTROL VALVES, excluding
cartridge, stack, logic and electrohydraulic types

3329125110
3329125120
3329125130

1201
1205
1209

3329125140
3329125150
3329125160

1211
1215
1219

3329127100

Manual:
3- & 4-way monoblock
3- & 4-way sectional
Other manual
Solenoid:
2-way types
3- & 4-way types
Other directional control
NONAEROSPACE TYPE HYDRAULIC VALVES (EXCEPT DIRECTIONAL CONTROL)

3329127110
3329127120

1221
1225

3329127130
3329127140
3329127155

1231
1235
1240

3329127160
3329127170
3329127180

1241
1243
1249

3329129100

Pressure control:
Relief valves
Other, including load sensing and manual types
Flow control:
Manual types
Other flow control types
Cartridge valves (except directional control)
Electrohydraulic valves:
Pilot operated, torque motor servovalves
Other types, including proportional
Other nonaerospace type hydraulic valves, including stack and logic
NONAEROSPACE TYPE PNEUMATIC DIRECTIONAL CONTROL VALVES

3329129110

1251

3329129120

1253

3329129130
3329129140

1255
1257

3329129150
3329129160
3329129170
3329129180

1265
1267
1268
1269

Manual
Solenoid:
Under 1/8" port diameter
1/8" up to and including 1/4" port diameter:
3-way types
4-way types
Over 1/4" port diameter:
3-way types
4-way types
All other solenoid
Mechanical, remote pilot and all other types

Page 5 of 11

CURRENT INDUSTRIAL REPORTS SERIES
REFERENCE LIST—Continued
FORM

MA333N

Product
code

Item
code

Item description
Section I — FLUID POWER VALVES (hydraulic and pneumatic valves and
parts)—Continued
(Report quantity in number of units)

332912B100
332912B110
332912B120
332912B130
332912B140
332912C000
332912B150

NONAEROSPACE TYPE PNEUMATIC VALVES (EXCEPT DIRECTIONAL CONTROL)
1271
1273
1275
1277
1278
1279

AEROSPACE TYPE HYDRAULIC FLUID POWER VALVES

3329121100
3329121110
3329121120
3329121130
3329121140
3329121150

1281
1283
1285
1287
1289

3329123100
3329123110

2-, 3-, and 4-way directional control valves:
Manually or mechanically operated
Solenoid operated
Motor operated
Electrohydraulic servovalves
Flow, pressure, and other types of hydraulic valves
AEROSPACE TYPE PNEUMATIC FLUID POWER VALVES

1291

332912D100
332912D110
332912D120

Filter-regulator combination units, integral types
Other FRs and filter-regulator-lubricator combo units
Regulators sold separately
Flow control valves
Nonaerospace-type pneumatic valves-for non-motion control applications
Check, shuttle, exhaust, needle, and all other types

Pneumatic valves (all types)
PARTS FOR FLUID POWER VALVES

1293
1295

Parts for nonaerospace type hydraulic and pneumatic valves, sold separately
Parts for aerospace type hydraulic and pneumatic valves, sold separately

Section II — FLUID POWER FITTINGS AND ASSEMBLIES (fittings for and assemblies
of tubing and hose used in fluid power transfer systems)
332912H100

332912H110
332912H120
332912H130
332912H140
332912H150

NONAEROSPACE TYPE FLARED (METAL) FITTINGS AND COUPLINGS FOR, AND
ASSEMBLIES OF TUBING USED IN FLUID POWER TRANSFER SYSTEMS
2201
2203
2205
2207
2209

Flared fittings:
Brass and bronze (SAE 45 degrees and 37 degrees)
Carbon steel (JIC 37 degrees)
Other, including alloy steel
Assemblies of tubing
Assemblies of tubing and hose

Page 6 of 11

CURRENT INDUSTRIAL REPORTS SERIES
REFERENCE LIST — Continued
FORM

MA333N

Product
code

Item
code

Item description
Section II — FLUID POWER FITTINGS AND ASSEMBLIES (fittings for and assemblies
of tubing and hose used in fluid power transfer systems) —Continued

332912J100

NONAEROSPACE TYPE FLARELESS FITTINGS AND COUPLINGS, INCLUDING
NONMETAL FITTINGS, USED IN FLUID POWER TRANSFER SYSTEMS

332912J110
332912J120
332912J130
332912J140

2211
2213
2215
2217

Metal types:
Brass and bronze
Carbon steel
Stainless steel
Other, including alloy steel

332912J150

2221

Nonmetal fittings, including plastic

332912L100
332912L110
332912L120
332912L130
332912L140
332912L150
332912L160

NONAEROSPACE TYPE HYDRAULIC AND PNEUMATIC FITTINGS AND COUPLINGS
FOR HOSE, AND MANIFOLDS
2241
2243
2245
2247
2249
2251

332912N100
332912N110
332912N120
332912N130

NONAEROSPACE TYPE HYDRAULIC AND PNEUMATIC ASSEMBLIES OF HOSE
2261
2263
2265

Assemblies with permanent end fittings
Assemblies with reusable fittings
Nonaerospace-type hydraulic and pneumatic bulk hose
AEROSPACE TYPE HYDRAULIC AND PNEUMATIC HOSE OR TUBE END FITTINGS AND
ASSEMBLES AND MANIFOLDS

332912F100
332912F110
332912F125
332912F130

Permanent hose end fittings (crimped and swaged)
Hydraulic and pneumatic reusable end fittings
Hydraulic quick connect and disconnect couplings
Pneumatic quick connect and disconnect couplings
Manifolds and manifold assemblies for fluid power systems
All other, including steel adaptor, swivel, rotating, and extension fittings

2271
2272
2275

Assemblies of hose and/or tubing
Hose and/or tube fittings, all types
Manifolds for aerospace hydraulic systems

Page 7 of 11

CURRENT INDUSTRIAL REPORTS SERIES
REFERENCE LIST — Continued
FORM

MA333N

Product
code

Item
code

Item description
Section III — FILTERS FOR HYDRAULIC AND PNEUMATIC FLUID POWER SYSTEMS
(Report quantity in number of units)

3339993100

NONAEROSPACE TYPE FILTERS FOR HYDRAULIC FLUID POWER SYSTEMS

3339993110
3339993120
3339993130

3301
3302
3304

Hydraulic fluid filter assemblies, with or without filter element installed:
Low pressure (below 301 psi)
Medium pressure (301 - 2,999 psi)
High pressure (3,000 psi and above)

3339993140
3339993150
3339993160

3305
3307
3309

Filter replacement elements:
Reusable (cleanable) type
Nonreusable type
Strainers and separators, filter parts, and accessories

3339994100

NONAEROSPACE TYPE FILTERS FOR PNEUMATIC FLUID POWER SYSTEMS

3339994110
3339994120
3339994130

Air supply filter assemblies and filter replacement elements, excluding those shipped as
part of a FR or FRL combo unit:
Coalescing types, including elements sold separately
Other types, including elements sold separately
Air exhaust mufflers, diffusers, filter parts and air preparation accessories

3311
3313
3323

3339996100
3339996110
3339996120

AEROSPACE TYPE HYDRAULIC AND PNEUMATIC FILTERS
3325
3327

Hydraulic
Pneumatic

COMPRESSED AIR AND GAS DRYERS, AND LUBRICATORS

3339998870,
3339998880
3339998A00

3340

Compressed air and gas dryers

3339998880

3347

Lubricators for pneumatic systems, sold separately

Page 8 of 11

CURRENT INDUSTRIAL REPORTS SERIES
REFERENCE LIST — Continued
FORM

MA333N

Product
code

Item
code

Item description
Section IV — HYDRAULIC AND PNEUMATIC CYLINDERS, ACTUATORS,
ACCUMULATORS, CUSHIONS, NONVEHICULAR SHOCK ABSORBERS, AND PARTS
(Report quantity in number of units)

3339951100

NONAEROSPACE TYPE HYDRAULIC FLUID POWER CYLINDERS AND ACTUATORS,
LINEAR AND ROTARY

3339951110
3339951120
3339951130
3339951140

4501
4503
4505
4507

Hydraulic cylinders, excluding electrohydraulic:
Tie-rod types:
Standard NFPA and JIC tie-rod types:
Less than 1500 psi
1500 to 3000 psi
Greater than 3000 psi
Other tie-rod types

3339951150
3339951160
3339951170
3339951180
3339951190
33399511A0

4509
4511
4513
4515
4517
4519

Threaded/weld fused combination
Telescoping
Mill type
Other, including those threaded at both ends
Electrohydraulic types
Hydraulic rotary actuators

3339953100

NONAEROSPACE TYPE PNEUMATIC FLUID POWER CYLINDERS AND ACTUATORS,
LINEAR AND ROTARY

3339953110

4601

3339953120
3339953130
3339953140

4603
4605
4607

3339953150
3339953160
3339953170

4609
4611
4619

3339955100

NFPA interchangeable cylinders:
Steel
Aluminum:
Less than 1½" bore size
1½" bore size and over
Rodless cylinders
Other pneumatic cylinders:
Less than 1½" bore size
1½" bore size and over
Pneumatic rotary actuators

PARTS FOR NONAEROSPACE TYPE HYDRAULIC AND PNEUMATIC FLUID POWER
CYLINDERS, ACTUATORS, AND RELATED ITEMS N.E.C.

3339955110
3339955120
3339955130

4841
4843
4845

Accumulators (bladder, piston, and other types)
Shock absorbers, not for vehicle suspension, and cushions (hydraulic and pneumatic)
Reservoirs, intensifiers, and other devices for fluid energy absorption and/or storage

3339955140

4847

Parts for nonaerospace type hydraulic and pneumatic cylinders, actuators, accumulators,
cushions, and nonvehicular shock absorbers, sold separately

Page 9 of 11

CURRENT INDUSTRIAL REPORTS SERIES
REFERENCE LIST — Continued
FORM

MA333N

Product
code

Item
code

Item description
Section IV — HYDRAULIC AND PNEUMATIC CYLINDERS, ACTUATORS,
ACCUMULATORS, CUSHIONS, NONVEHICULAR SHOCK ABSORBERS, AND PARTS —
Continued
(Report quantity in number of units)

3339957100

AEROSPACE TYPE FLUID POWER CYLINDERS AND ACTUATORS,
HYDRAULIC AND PNEUMATIC

3339957110
3339957120
3339957130

4851
4853
4855

Hydraulic servo-actuator assemblies (linear and rotary):
Mechanical input
Electrical input
Combination input

3339957140
3339957150

4861
4863

Hydraulic utility actuators:
Linear actuators (cylinders)
Rotary actuators (limited rotation)

3339957160
3339957170
3339957180
3339957190
33399571A0

4865
4871
4873
4875
4877

Shock absorbers, snubbers, and cushions (all types), excluding oleo strut assemblies
Pneumatic actuators (linear and rotary)
Accumulators (bladder, piston, and other types)
Reservoirs, intensifiers, and other devices for fluid energy absorption and/or storage
Other aerospace type fluid power cylinders, rotary actuators, cushions and related items,
n.e.c.

3339555150

4893

Parts for aerospace type hydraulic and pneumatic cylinders, actuators, accumulators,
cushions, and related items, sold separately
Section V — FLUID POWER PUMPS AND MOTORS, AND PARTS
(Report quantity in number of units)

3339961100

NONAEROSPACE TYPE RECIPROCATING PUMPS

3339961110
3339961120
3339961130

5504
5514
5515

Axial piston:
Variable displacement types:
Closed loop
Open loop
Fixed displacement types

3339961140

5517

Radial piston types

3339963100

NONAEROSPACE TYPE ROTARY AND OTHER FLUID POWER PUMPS

3339963110
3339963120

5534
5535

3339963150

5537

Gear type:
Internal, including gerotors
External type
Vane type:
Fixed and variable displacement vanes

Page 10 of 11

CURRENT INDUSTRIAL REPORTS SERIES
REFERENCE LIST — Continued
FORM

MA333N

Product
code

Item
code

Item description
Section V — FLUID POWER PUMPS AND MOTORS, AND PARTS — Continued
(Report quantity in number of units)

3339965100

NONAEROSPACE TYPE FLUID POWER MOTORS

3339965120
3339965130
3339965140

5548
5550
5551

Hydraulic motors:
Gear type:
Internal, excluding gerotor types
Gerotor types
External

3339965150
3339965160

5553
5555

Vane types, fixed and variable
Radial piston types, fixed and variable

3339965170
3339965180

5557
5559

Axial piston types:
Fixed displacement
Variable displacement

3339965110

5560

Pneumatic (air) motors

3339965190

5571

Prime movers shipped with pumps or sold separately

3339967100

AEROSPACE TYPE FLUID POWER PUMPS AND MOTORS

3339967110
3339967120
3339967130

5581
5583
5585

Hydraulic pumps:
Fixed and variable displacement types
Pump/electric motor assemblies, fixed, and variable displacement types
Other pump packages n.e.c.

3339967170

5586

Motors:
Aerospace type fluid power motors, all kinds

3339969100

PARTS FOR FLUID POWER PUMPS, MOTORS, AND HYDROSTATIC TRANSMISSIONS

3339969110
3339969120

5591
5593

Hydraulic:
Nonaerospace
Aerospace

3339969130
3339969140

5595
5597

Pneumatic:
Nonaerospace
Aerospace

333996A000
333996B000

5599
5600

Nonaerospace hydrostatic transmissions
Nonaerospace hydraulic power units

Page 11 of 11