331524 — Aluminum Foundries (except Die-Casting)
Description
This U.S. industry comprises establishments primarily engaged in pouring molten aluminum into molds to manufacture aluminum castings (except nonferrous die-castings). Establishments in this industry purchase aluminum made in other establishments.
Overview Facts
| NAICS Code | 331524 |
|---|---|
| Industry Title | Aluminum Foundries (except Die-Casting) |
| SBA Size Standard | 550 employees |
| IRS PBA Code | 331500 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 331 → 3315 |
| 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 3365 - Aluminum Foundries (via SIC1987:3365→NAICS1997:331524→2002:331524→2007:331524→2012:331524→2017:331524→2022:331524)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 331524:
- 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 3315
Frequently Asked Questions (FAQ)
Is 331524 a valid 2022 NAICS code?
NAICS 331524 is 'Aluminum Foundries (except Die-Casting)', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 550 employees.
What is the SBA size standard for NAICS 331524?
The SBA small business size standard for NAICS 331524 is 550 employees (based on employees).
What is the legacy SIC code mapping for 331524?
NAICS code 331524 maps to the legacy 1987 SIC codes: 3365 - Aluminum Foundries.