NAICS 333995

Overview

The North American Industry Classification System (NAICS) is the federal standard for classifying business establishments to collect, analyze, and publish statistics about the U.S. economy. Developed under the Office of Management and Budget in 1997 to replace the SIC system, NAICS was created jointly by U.S., Canadian, and Mexican statistical agencies to enable cross-country comparability. The current statistical vintage used for the 2022 Economic Census is NAICS 2022. ¹

NAICS 333995 is defined as establishments primarily engaged in manufacturing fluid power cylinders and actuators, including hydraulic and pneumatic types. In federal statistical programs, 333995 sits within Manufacturing (31–33) → Machinery Manufacturing (333) → Other General Purpose Machinery (3339), and is used to delineate production of cylinders/actuators from fluid power pumps/motors and valves/hose fittings. ²

See also on G2X:

• G2X — NAICS 333995 overview
• G2X — NAICS 333996
• G2X — NAICS 332912

What this NAICS covers

• Manufacturing hydraulic fluid power cylinders. ²
• Manufacturing pneumatic fluid power cylinders. ²
• Manufacturing hydraulic fluid power actuators. ²
• Manufacturing pneumatic fluid power actuators. ²
• Manufacturing complete fluid power cylinder and actuator units for industrial applications. ²
• Manufacturing cylinder/actuator assemblies used in fluid power systems. ²

Related NAICS and PSC codes

Boundaries and cross‑references (NAICS 2022)

• Cylinders and actuators are in 333995; fluid power pumps and motors are classified in 333996; valves and hose fittings for fluid power systems are in 332912. General purpose (non-fluid-power) pumps and air/gas compressors fall under 333911 and 333912, respectively. ²
• PSC alignment is procurement-oriented rather than production-process-oriented. Federal product buys related to power transmission components often report under PSC Group 30; a commonly related product code is 3040 “Miscellaneous Power Transmission Equipment.” Applicability depends on contract line items and agency reporting. ³

Frequently asked questions

• What products are included in NAICS 333995?

  The category covers manufacturing of fluid power cylinders and actuators, both hydraulic and pneumatic. It is a manufacturing classification used for federal statistics and does not prescribe procurement coding by itself. ²

• How does 333995 differ from 333996?

  333995 covers cylinders and actuators; 333996 covers pumps and motors used in fluid power systems. The NAICS cross-references separate these to maintain clear industry boundaries. ²

• Are fluid power valves or hose fittings included under 333995?

  No. Fluid power valves and hose fittings are classified in 332912, a different NAICS industry within Fabricated Metal Product Manufacturing. ²

• Where do general-purpose pumps or air compressors belong?

  General purpose pump manufacturing is classified in 333911, and air and gas compressor manufacturing is in 333912. These are outside the fluid power cylinder/actuator scope of 333995. ²

• Does 333995 specify inclusion of installation or repair services?

  Not specified by official sources ².

Useful resources

• G2X — NAICS 333995 overview
• U.S. Census Bureau: NAICS 2022 Manufacturing sector (31–33) definitions, including 333995. ²
• Census “NAICS Codes & Understanding Industry Classification Systems” (2022 vintage guidance). ¹
• DoD/Acquisition.gov: PSC/Group 30 context (includes 3040 descriptor). ³

References

1. U.S. Census Bureau — Economic Census 2022: NAICS Codes & Understanding Industry Classification Systems: https://www.census.gov/programs-surveys/economic-census/year/2022/technical-documentation/code-lists/understanding-naics-redirect.html
2. U.S. Census Bureau — NAICS 2022 Manufacturing sector (31–33) definitions (includes 333995, 333996, 332912, 333911, 333912): https://www.census.gov/naics/resources/archives/sect31-33.html
3. Acquisition.gov — PGI 208.7006 Coordinated acquisition assignments (lists product groups and descriptors, including 3040 Miscellaneous Power Transmission Equipment): https://www.acquisition.gov/node/55785/printable/print