NAICS 333998: All Other Miscellaneous General Purpose Machinery Manufacturing
All Other Miscellaneous General Purpose Machinery Manufacturing is NAICS code 333998. A business is small under it with 700 employees or fewer. 53 federal contracts are open on SAM.gov under this code right now.
- SBA size standard
- 700 employees or fewer
- Open contracts now
- 53
- Federal spending, FY2026
- $229.9 million
- Share won by small businesses
- 66%
- Small businesses registered
- 797
Open federal contracts for all other miscellaneous general purpose machinery manufacturing
Most open notices under this code are Defense supply orders for specific parts, usually limited to approved sources.
- ELEMENT AND SHELL
✦ The Navy (NAVSUP Weapon Systems Support, Mechanicsburg, PA) wants quotes to supply an 'element and shell' item under solicitation N0010426QBY03.
Due in 1 dayOct 5, 2026
- TEST SET SUBASSEMBL
✦ NAVSUP Weapon Systems Support Mech wants a purchase order for a Test Set Subassembly built to Navy drawing 6964481 (cage 53711), issued under emergency acquisition flexibility.
Due in 1 dayOct 5, 2026
- INTERFACE UNIT,DATA, IN REPAIR/MODIFICATION OF
Due in 1 dayOct 5, 2026
- IDC for Parts Kit, Fluid Pressure Filter
Due in 1 dayOct 5, 2026
- FILTER ELEMENT,FLUID
Due in 2 daysOct 6, 2026
- FILTER,FLUID
Due in 3 daysOct 7, 2026
What NAICS 333998 covers
The Census Bureau's NAICS index lists these kinds of work under 333998:
- Aircraft carrier catapults manufacturing
- Baby scales manufacturing
- Balances, including laboratory-type, manufacturing
- Baling machinery (e.g., paper, scrap metal) manufacturing
- Bathroom scales manufacturing
- Bellows, industrial-type, manufacturing
- Bridge and gate lifting machinery manufacturing
- Centrifuges, industrial and laboratory-type, manufacturing
- Cremating ovens manufacturing
- Delicatessen scales manufacturing
- Filters, industrial and general purpose-type (except internal combustion engine, warm air furnace), manufacturing
- Gas generating machinery, general purpose-type, manufacturing
- Gas separating machinery manufacturing
- Gate and bridge lifting machinery manufacturing
The index lists 35 entries for this code in all.
Read the full definition, including what's excluded, on census.gov.
SBA size standard for 333998
To count as a small business for a contract assigned NAICS 333998, your business must have 700 employees or fewer. Employees are averaged over the last 24 months.
From SBA's table of size standards, effective Mar 17, 2023. Confirm it with SBA's size standards tool before you certify your size.
Who buys all other miscellaneous general purpose machinery manufacturing
Agencies that awarded the most under NAICS 333998 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Defense Logistics Agency | $434 million |
| Department of the Navy | $212.9 million |
| Department of the Air Force | $31.1 million |
| U.S. Coast Guard | $24.6 million |
| Department of the Army | $11.6 million |
| Department of Veterans Affairs | $7.7 million |
| Bureau of Reclamation | $5.5 million |
| National Institutes of Health | $4.2 million |
Open notices right now come from Dept of Defense (214), Department of Homeland Security (2) and Department of Veterans Affairs (1).
Set-asides on open 333998 contracts
- No set-aside (full and open): 121
- Total small business set-aside: 83
- Women-owned set-aside: 9
- Service-disabled veteran-owned set-aside: 3
- HUBZone set-aside: 1
Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.
Your competition
797 businesses with active SAM.gov registrations are rated small under NAICS 333998, most of them in California (100), Texas (77), Florida (53), Virginia (41) and Michigan (40). Look any of them up with the free CAGE code and UEI lookup.
Federal spending under 333998 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $224 million |
| FY2025 | $290.4 million |
| FY2026 | $229.9 million |
| FY2027 (so far) | $34,128 |
Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.
Related NAICS codes
- 333912 Air and Gas Compressor Manufacturing
- 333914 Measuring, Dispensing, and Other Pumping Equipment Manufacturing
- 333921 Elevator and Moving Stairway Manufacturing
- 333922 Conveyor and Conveying Equipment Manufacturing
- 333923 Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
- 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
- 333991 Power-Driven Handtool Manufacturing
- 333992 Welding and Soldering Equipment Manufacturing
Frequently asked questions
What is NAICS code 333998?
333998 is the 2022 NAICS code for All Other Miscellaneous General Purpose Machinery Manufacturing. The Census Bureau's index lists work such as aircraft carrier catapults manufacturing, baby scales manufacturing, balances, including laboratory-type, manufacturing under it. Federal contracting uses the 2022 codes.
What is the SBA size standard for NAICS 333998?
700 employees or fewer. A business at or under that is small for contracts assigned this code. The current SBA table took effect Mar 17, 2023.
Are there government contracts for all other miscellaneous general purpose machinery manufacturing?
Yes. 53 federal contract opportunities under NAICS 333998 are open on SAM.gov right now. Agencies obligated about $229.9 million under this code in fiscal year 2026, according to USAspending.gov.
How do I add NAICS code 333998 to my SAM.gov registration?
Update your entity registration on SAM.gov and add the code on the Goods and Services page, in the Assertions section. You can list several NAICS codes and mark one as your primary. Changes are free.
Keep going
- Search other NAICS codes by keyword or company
- How to choose NAICS codes for government contracts
- NAICS codes with the most open federal contracts
FedReady is an independent company, not affiliated with SBA, SAM.gov, the Census Bureau or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov.