327120

Clay Building Material and Refractories Manufacturing

Manufacturing › Nonmetallic Mineral Product Manufacturing › Clay Product and Refractory Manufacturing

SBA Size Standard

750 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

32

Sector

Manufacturing

327

Subsector

Nonmetallic Mineral Product Manufacturing

3271

Industry Group

Clay Product and Refractory Manufacturing

327120

National Industry (This Code)

Clay Building Material and Refractories Manufacturing

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
This industry comprises establishments primarily engaged in shaping, molding, baking, burning, or hardening clay refractories, nonclay refractories, ceramic tile, structural clay tile, brick, and other structural clay building materials. A refractory is a material that will retain its shape and chemical identity when subjected to high temperatures and is used in applications that require extreme resistance to heat, such as furnace linings.

✓ Small Business Eligibility at a Glance

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

Size Standard

750 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 327120

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 resilient flooring and asphalt floor tiles--are classified in U.S. Industry 326199, All Other Plastics Product Manufacturing;
Manufacturing concrete bricks--are classified in U.S. Industry 327331, Concrete Block and Brick Manufacturing; and
Manufacturing glass bricks and blocks--are classified in Industry 32721, Glass and Glass Product Manufacturing.

How to Use NAICS 327120 in SAM.gov

NAICS code 327120Clay Building Material and Refractories Manufacturing — 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 Clay Product and Refractory Manufacturing 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 750 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 327120.

Log in Entity Registration Goods & Services Add NAICS Code Enter 327120 Save

Frequently Asked Questions

What is NAICS code 327120?

NAICS code 327120 is 'Clay Building Material and Refractories Manufacturing', classified under the Manufacturing sector (NAICS 32). This industry comprises establishments primarily engaged in shaping, molding, baking, burning, or hardening clay refractories, nonclay refractories, ceramic tile, structural clay tile, brick, and othe

What is the SBA small business size standard for NAICS code 327120?

The SBA defines a small business under NAICS code 327120 (Clay Building Material and Refractories Manufacturing) as one with 750 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 327120 in SAM.gov?

To register NAICS code 327120 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 327120 (Clay Building Material and Refractories Manufacturing) to your NAICS code list. You may designate one code as your Primary NAICS code.

Quick Actions

Related NAICS Codes

Other codes in Clay Product and Refractory Manufacturing

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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