335991 — Carbon and Graphite Product Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing carbon, graphite, and metal-graphite brushes and brush stock; carbon or graphite electrodes for thermal and electrolytic uses; carbon and graphite fibers; and other carbon, graphite, and metal-graphite products.
Exclusions & Cross-References
- Establishments primarily engaged in manufacturing carbon or graphite gaskets are classified in U.S. Industry
- 339991, Gasket, Packing, and Sealing Device Manufacturing.
Overview Facts
| NAICS Code | 335991 |
|---|---|
| Industry Title | Carbon and Graphite Product Manufacturing |
| SBA Size Standard | 900 employees |
| IRS PBA Code | 335900 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 335 → 3359 |
| 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 3624 - Carbon and Graphite Products (via SIC1987:3624→NAICS1997:335991→2002:335991→2007:335991→2012:335991→2017:335991→2022:335991)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 335991:
- 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 3359
Frequently Asked Questions (FAQ)
Is 335991 a valid 2022 NAICS code?
NAICS 335991 is 'Carbon and Graphite Product Manufacturing', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 900 employees.
What is the SBA size standard for NAICS 335991?
The SBA small business size standard for NAICS 335991 is 900 employees (based on employees).
What is the legacy SIC code mapping for 335991?
NAICS code 335991 maps to the legacy 1987 SIC codes: 3624 - Carbon and Graphite Products.