PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33-203-443Differential Gear Unit

Thomson Micron, Llc · NSN 3040-01-201-6166 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-201-6166 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-201-6166. Primary manufacturer part number: 33-203-443.
Features
  • Differential Gear Unit — FSC 3040
  • Nominal Overall Length: 1.120 INCHES IN
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL COMP 416 OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Material Document and Classification: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Thomson Micron, Llc
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 416 Overall construction
General Description

The Differential Gear Unit, cataloged under National Stock Number 3040-01-201-6166, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Thomson Micron, Llc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-201-6166
Primary Part Number33-203-443
Item NameDifferential Gear Unit
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerThomson Micron, Llc
StatusACTIVE
Nominal Overall Length1.120 INCHES IN
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 416 OVERALL
Surface TreatmentPASSIVATE OVERALL
Material Document and ClassificationQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-068-0500015587T INTERCHANGEABLE
Screw,cap,hexagon Head
Kovatch Corp.
5305-00-226-926750-398-88 INTERCHANGEABLE
Screw,machine
Kurz & Root Generator Company, Llc
5305-01-161-0077132848 INTERCHANGEABLE
Screw,shoulder
Whirlpool Corp Dba Whirlpool Corp
Cross-Reference Index
Part NumberManufacturer
33-203-443 PRIMARY Thomson Micron, Llc (USA)
132848 Astronautics Corporation of America (USA)
Related Parts
5305-00-068-0500INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
015587T
5305-00-226-9267INTERCHANGEABLE
SCREW,MACHINE
50-398-88
5305-01-161-0077INTERCHANGEABLE
SCREW,SHOULDER
132848

Frequently Asked Questions

What is NSN 3040-01-201-6166?

NSN 3040-01-201-6166 is a Differential Gear Unit, manufactured by Thomson Micron, Llc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-201-6166?

NSN 3040-01-201-6166 has 2 cross-referenced part numbers: 33-203-443 (Thomson Micron, Llc), 132848 (Astronautics Corporation of America).

What NSN replaces 3040-01-201-6166?

There are 3 known substitutes for 3040-01-201-6166: 5305-00-068-0500, 5305-00-226-9267, 5305-01-161-0077. Verify interchangeability with system specifications before substitution.

What are the specifications of 33-203-443?

Key specifications for 33-203-443: Nominal Overall Length: 1.120 INCHES IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Special Features: MAXIMUM OPERATING SPEED 60 RPM RPM; Material: STEEL COMP 416 OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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