# NAICS 336412: Aircraft Engine and Engine Parts Manufacturing

The SBA size standard for NAICS 336412 is 1,500 employees (13 CFR 121.201).

| Field | Value |
| --- | --- |
| Code | 336412 |
| Title | Aircraft Engine and Engine Parts Manufacturing |
| Level | 6 |
| Parent | 33641 |
| Size standard | 1,500 employees |
| Footnote | - |

## Description

This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) manufacturing aircraft engines and engine parts; (2) developing and making prototypes of aircraft engines and engine parts; (3) aircraft propulsion system conversion (i.e., major modifications to systems); and (4) aircraft propulsion systems overhaul and rebuilding (i.e., periodic restoration of aircraft propulsion system to original design specifications).

## Sources

- Census NAICS: https://www.census.gov/naics/
- SBA size standards: https://www.sba.gov/document/support-table-size-standards

## API and MCP

- REST: GET https://samgovapi.io/api/v1/naics/336412/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

Independent. Not affiliated with, endorsed by or sponsored by GSA, SAM.gov or any U.S. government agency. Registering in SAM.gov is free at sam.gov.

Get a free API key: https://samgovapi.io/sign-up?ref=ai-claudebot