What is the modern NAICS equivalent for SIC 3599?

Q: What is the modern NAICS equivalent for SIC 3599?

SIC code 3599 maps to the following modern 2022 NAICS codes: 332710 - Machine Shops, 333310 - Commercial and Service Industry Machinery Manufacturing, 333998 - All Other Miscellaneous General Purpose Machinery Manufacturing, 336390 - Other Motor Vehicle Parts Manufacturing, 332999 - All Other Miscellaneous Fabricated Metal Product Manufacturing.

Registry · SIC Index · Group 35

SIC 3599 — Industrial and Commercial Machinery and Equipment, NEC

SIC 3599 is 'Industrial and Commercial Machinery and Equipment, NEC', a 4-digit Standard Industrial Classification (SIC) code under Major Group 35: Industrial and Commercial Machinery and Computer Equipment (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 332710 (Machine Shops), 333310 (Commercial and Service Industry Machinery Manufacturing).

Description & Classification

SIC code 3599 representing 'Industrial and Commercial Machinery and Equipment, NEC' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.

Modern NAICS Crosswalk

Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:

NAICS 332710 - Machine Shops (via SIC1987:3599→NAICS1997:33271→2002:332710→2007:332710→2012:332710→2017:332710→2022:332710)
NAICS 333310 - Commercial and Service Industry Machinery Manufacturing (via SIC1987:3599→NAICS1997:333319→2002:333319→2007:333319→2012:333318→2017:333318→2022:333310)
NAICS 333998 - All Other Miscellaneous General Purpose Machinery Manufacturing (via SIC1987:3599→NAICS1997:333999→2002:333999→2007:333999→2012:333999→2017:333999→2022:333998)
NAICS 336390 - Other Motor Vehicle Parts Manufacturing (via SIC1987:3599→NAICS1997:336399→2002:336399→2007:336399→2012:336390→2017:336390→2022:336390)
NAICS 332999 - All Other Miscellaneous Fabricated Metal Product Manufacturing (via SIC1987:3599→NAICS1997:332999→2002:332999→2007:332999→2012:332999→2017:332999→2022:332999)

Classification Details

SIC Code	3599
Industry Title	Industrial and Commercial Machinery and Equipment, NEC
Division	Division D: Manufacturing
Major Group	Major Group 35: Industrial and Commercial Machinery and Computer Equipment
Source / Verified	US Census 1987 SIC Concordance / 2026-06-28

Related Resources & Compliance Guides

Further regulatory reference links for legacy SIC code 3599:

SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
SIC Major Group 35 Hub — View other legacy industries in this business division.

Related Industries in Major Group 35

3511 - Steam, Gas, and Hydraulic Turbines, and ...3519 - Internal Combustion Engines, NEC...3523 - Farm Machinery and Equipment...3524 - Lawn and Garden Tractors and Home Lawn a...3531 - Construction Machinery and Equipment...3532 - Mining Machinery and Equipment, Except O...3533 - Oil and Gas Field Machinery and Equipmen...3534 - Elevators and Moving Stairways...

Frequently Asked Questions (FAQ)

What industry does SIC code 3599 represent?

What is the modern 2022 NAICS mapping for SIC 3599?

SIC code 3599 maps to modern NAICS codes: 332710 - Machine Shops, 333310 - Commercial and Service Industry Machinery Manufacturing, 333998 - All Other Miscellaneous General Purpose Machinery Manufacturing, 336390 - Other Motor Vehicle Parts Manufacturing, 332999 - All Other Miscellaneous Fabricated Metal Product Manufacturing.