331529

Other Nonferrous Metal Foundries (except Die-Casting)

Manufacturing › Primary Metal Manufacturing › Foundries

SBA Size Standard

500 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

33

Sector

Manufacturing

331

Subsector

Primary Metal Manufacturing

3315

Industry Group

Foundries

331529

National Industry (This Code)

Other Nonferrous Metal Foundries (except Die-Casting)

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
This U.S. industry comprises establishments primarily engaged in pouring molten nonferrous metals (except aluminum) into molds to manufacture nonferrous castings (except nonferrous die-castings and aluminum castings). Establishments in this industry purchase nonferrous metals, such as copper, nickel, lead, and zinc, made in other establishments. Cross-references. Establishments primarily engaged in--

✓ Small Business Eligibility at a Glance

Based on SBA Table of Small Business Size Standards (2024)

Size Standard

500 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 331529

Set-Aside Programs

8(a), WOSB, HUBZone, SDVOSB

Certification Required

No (self-certify in SAM.gov)

Size standards are set by the SBA and reviewed periodically. Always verify at SBA.gov before bidding.

Cross-References

The following activities are classified elsewhere in the NAICS system:

Manufacturing nonferrous die-castings--are classified in U.S. Industry 331523, Nonferrous Metal Die-Casting Foundries;
Pouring molten aluminum into molds to manufacture aluminum castings--are classified in U.S. Industry 331524, Aluminum Foundries (except Die-Casting); and
Manufacturing nonferrous castings and further manufacturing them into finished products--are classified based on the specific finished product.

How to Use NAICS 331529 in SAM.gov

NAICS code 331529Other Nonferrous Metal Foundries (except Die-Casting) — is used in SAM.gov to identify businesses whose primary activity falls within this classification. When you add this code to your SAM.gov entity registration, contracting officers searching for vendors in the Foundries space will be able to find your business.

If this code represents your primary business activity, designate it as your primary NAICS code. Your primary NAICS code determines your size standard for any contract solicited under this code. With a size standard of 500 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 331529.

Log in Entity Registration Goods & Services Add NAICS Code Enter 331529 Save

Frequently Asked Questions

What is NAICS code 331529?

NAICS code 331529 is 'Other Nonferrous Metal Foundries (except Die-Casting)', classified under the Manufacturing sector (NAICS 33). This U.S. industry comprises establishments primarily engaged in pouring molten nonferrous metals (except aluminum) into molds to manufacture nonferrous castings (except nonferrous die-castings and al

What is the SBA small business size standard for NAICS code 331529?

The SBA defines a small business under NAICS code 331529 (Other Nonferrous Metal Foundries (except Die-Casting)) as one with 500 employees. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.

How do I register NAICS code 331529 in SAM.gov?

To register NAICS code 331529 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 331529 (Other Nonferrous Metal Foundries (except Die-Casting)) to your NAICS code list. You may designate one code as your Primary NAICS code.

Quick Actions

Related NAICS Codes

Other codes in Foundries

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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