333998 — All Other Miscellaneous General Purpose Machinery Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing general purpose machinery (except ventilating, heating, air-conditioning, and commercial refrigeration equipment; metalworking machinery; engines, turbines, and power transmission equipment; pumps and compressors; material handling equipment; power-driven handtools; welding and soldering equipment; packaging machinery; industrial process furnaces and ovens; fluid power cylinders and actuators; and fluid power pumps and motors).
Illustrative Examples
- Automatic fire sprinkler systems manufacturing
- Baling machinery (e.g., paper, scrap metal) manufacturing
- Bridge and gate lifting machinery manufacturing
- Centrifuges, industrial and laboratory-type, manufacturing
- Cremating ovens manufacturing
- General purpose-type sieves and screening equipment manufacturing
- Hydraulic and pneumatic jacks manufacturing
- Industrial and general purpose-type filters (except internal combustion engine, warm air furnace) manufacturing
- Scales and balances manufacturing
Overview Facts
| NAICS Code | 333998 |
|---|---|
| Industry Title | All Other Miscellaneous General Purpose Machinery Manufacturing |
| SBA Size Standard | 700 employees |
| IRS PBA Code | 333900 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 333 → 3339 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 2599 - Furniture and Fixtures, NEC (via SIC1987:2599→NAICS1997:339111→2002:339111→2007:333997→2012:333997→2017:333997→2022:333998)
- SIC 3569 - General Industrial Machinery and Equipment, NEC (via SIC1987:3569→NAICS1997:333999→2002:333999→2007:333999→2012:333999→2017:333999→2022:333998)
- SIC 3596 - Scales and Balances, Except Laboratory (via SIC1987:3596→NAICS1997:333997→2002:333997→2007:333997→2012:333997→2017:333997→2022:333998)
- SIC 3599 - Industrial and Commercial Machinery and Equipment, NEC (via SIC1987:3599→NAICS1997:333999→2002:333999→2007:333999→2012:333999→2017:333999→2022:333998)
- SIC 3821 - Laboratory Apparatus and Furniture (via SIC1987:3821→NAICS1997:339111→2002:339111→2007:333997→2012:333997→2017:333997→2022:333998)
- SIC 3841 - Surgical and Medical Instruments and Apparatus (via SIC1987:3841→NAICS1997:339111→2002:339111→2007:333997→2012:333997→2017:333997→2022:333998)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 333998:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 3339
Frequently Asked Questions (FAQ)
Is 333998 a valid 2022 NAICS code?
NAICS 333998 is 'All Other Miscellaneous General Purpose Machinery Manufacturing', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 700 employees.
What is the SBA size standard for NAICS 333998?
The SBA small business size standard for NAICS 333998 is 700 employees (based on employees).
What is the legacy SIC code mapping for 333998?
NAICS code 333998 maps to the legacy 1987 SIC codes: 2599 - Furniture and Fixtures, NEC, 3569 - General Industrial Machinery and Equipment, NEC, 3596 - Scales and Balances, Except Laboratory, 3599 - Industrial and Commercial Machinery and Equipment, NEC, 3821 - Laboratory Apparatus and Furniture, 3841 - Surgical and Medical Instruments and Apparatus.