PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

129-768Washer,flat

General Motors Corp · NSN 5310-00-197-5291 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-197-5291 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-197-5291. Primary manufacturer part number: 129-768.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 1.438 INCHES NOMINAL IN
  • Thickness: 0.062 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Material Document and Classification: QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-197-5291, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Corp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-197-5291
Primary Part Number129-768
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
Peripheral Shape StyleROUND
Overall Diameter1.438 INCHES NOMINAL IN
Thickness0.062 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Material Document and ClassificationQQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Hole Diameter0.938 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6105-00-079-0543 INTERCHANGEABLE
Cover,housing
5310-00-082-1888129768 INTERCHANGEABLE
Washer,spring Tension
Cummins Inc.
1660-00-791-4180174158 INTERCHANGEABLE
Duct Assembly
Honeywell International Inc. Div Aerospace - Torrance
4730-01-415-841281282 INTERCHANGEABLE
Coupler,membrane
Filmtec Corp
Cross-Reference Index
Part NumberManufacturer
129-768 General Motors Corp (USA)
174-158 General Motors Corp Electro-Motive Div (USA)
158-817 General Motors Corp (USA)
129-768 General Motors Llc Dba General Motors Llc (USA)
174-158 General Motors Corp (USA)
158-817 General Motors Llc Dba General Motors Llc (USA)
129-768 General Motors Corp Electro-Motive Div (USA)
158-817 General Motors Corp Electro-Motive Div (USA)
174-158 General Motors Llc Dba General Motors Llc (USA)
Related Parts
6105-00-079-0543INTERCHANGEABLE
COVER,HOUSING
5310-00-082-1888INTERCHANGEABLE
WASHER,SPRING TENSION
129768
1660-00-791-4180INTERCHANGEABLE
DUCT ASSEMBLY
174158
4730-01-415-8412INTERCHANGEABLE
COUPLER,MEMBRANE
81282

Frequently Asked Questions

What is NSN 5310-00-197-5291?

NSN 5310-00-197-5291 is a Washer,flat, manufactured by General Motors Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-197-5291?

NSN 5310-00-197-5291 has 9 cross-referenced part numbers: 129-768 (General Motors Corp), 174-158 (General Motors Corp Electro-Motive Div), 158-817 (General Motors Corp), 129-768 (General Motors Llc Dba General Motors Llc), 174-158 (General Motors Corp) and 4 more.

What NSN replaces 5310-00-197-5291?

There are 4 known substitutes for 5310-00-197-5291: 6105-00-079-0543, 5310-00-082-1888, 1660-00-791-4180 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 129-768?

Key specifications for 129-768: Peripheral Shape Style: ROUND; Overall Diameter: 1.438 INCHES NOMINAL IN; Thickness: 0.062 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL. 8 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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