Registry · SIC Index · Group 36

SIC 3621 — Motors and Generators

SIC 3621 is 'Motors and Generators', a 4-digit Standard Industrial Classification (SIC) code under Major Group 36: Electronic and Other Electrical Equipment and Components (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 335312 (Motor and Generator Manufacturing).

Description & Classification

SIC code 3621 representing 'Motors and Generators' 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:

Classification Details

SIC Code3621
Industry TitleMotors and Generators
DivisionDivision D: Manufacturing
Major GroupMajor Group 36: Electronic and Other Electrical Equipment and Components
Source / VerifiedUS Census 1987 SIC Concordance / 2026-06-28

Related Resources & Compliance Guides

Further regulatory reference links for legacy SIC code 3621:

Related Industries in Major Group 36

3612 - Power, Distribution, and Specialty Trans...3613 - Switchgear and Switchboard Apparatus...3624 - Carbon and Graphite Products...3625 - Relays and Industrial Controls...3629 - Electrical Industrial Apparatus, NEC...3631 - Household Cooking Equipment...3632 - Household Refrigerators and Home and Far...3633 - Household Laundry Equipment...

Frequently Asked Questions (FAQ)

What industry does SIC code 3621 represent?

SIC 3621 is 'Motors and Generators', a 4-digit Standard Industrial Classification (SIC) code under Major Group 36: Electronic and Other Electrical Equipment and Components (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 335312 (Motor and Generator Manufacturing).

What is the modern 2022 NAICS mapping for SIC 3621?

SIC code 3621 maps to modern NAICS codes: 335312 - Motor and Generator Manufacturing.