336510

Railroad Rolling Stock Manufacturing

Manufacturing › Transportation Equipment Manufacturing › Railroad Rolling Stock Manufacturing

SBA Size Standard

1,500 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

33

Sector

Manufacturing

336

Subsector

Transportation Equipment Manufacturing

3365

Industry Group

Railroad Rolling Stock Manufacturing

336510

National Industry (This Code)

Railroad Rolling Stock 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 one or more of the following: (1) manufacturing and/or rebuilding locomotives, locomotive frames, and parts; (2) manufacturing railroad, street, and rapid transit cars and car equipment for operation on rails for freight and passenger service; and (3) manufacturing rail layers, ballast distributors, rail tamping equipment, and other railway track maintenance equipment.

✓ Small Business Eligibility at a Glance

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

Size Standard

1,500 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 336510

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:

Establishments primarily engaged in manufacturing mining rail cars are classified in U.S. Industry 333131, Mining Machinery and Equipment Manufacturing;
Establishments primarily engaged in manufacturing locomotive fuel lubricating or cooling medium pumps are classified in U.S. Industry 333914, Measuring, Dispensing, and Other Pumping Equipment Manufacturing;
Repair establishments of railroad and local transit companies primarily engaged in repairing railroad and transit cars are classified in Industry 488210, Support Activities for Rail Transportation; and
Establishments not owned by railroad or local transit companies engaged in repairing railroad cars and locomotive engines are classified in Industry 811310, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance.

How to Use NAICS 336510 in SAM.gov

NAICS code 336510Railroad Rolling Stock 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 Railroad Rolling Stock 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 1,500 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 336510.

Log in Entity Registration Goods & Services Add NAICS Code Enter 336510 Save

Frequently Asked Questions

What is NAICS code 336510?

NAICS code 336510 is 'Railroad Rolling Stock Manufacturing', classified under the Manufacturing sector (NAICS 33). This industry comprises establishments primarily engaged in one or more of the following: (1) manufacturing and/or rebuilding locomotives, locomotive frames, and parts; (2) manufacturing railroad, str

What is the SBA small business size standard for NAICS code 336510?

The SBA defines a small business under NAICS code 336510 (Railroad Rolling Stock Manufacturing) as one with 1,500 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 336510 in SAM.gov?

To register NAICS code 336510 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 336510 (Railroad Rolling Stock Manufacturing) to your NAICS code list. You may designate one code as your Primary NAICS code.

Quick Actions

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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