PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

605851Washer,flat

General Motors Corp · NSN 5310-00-039-6127 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-039-6127 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-039-6127. Primary manufacturer part number: 605851.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.375 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.0897 INCHES NOMINAL IN
  • Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Features Provided: CASEHARDENED
  • Material: STEEL COMP 1010 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-039-6127, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-039-6127
Primary Part Number605851
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
Overall Diameter1.375 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.0897 INCHES NOMINAL IN
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Features ProvidedCASEHARDENED
MaterialSTEEL COMP 1010 OVERALL
Center Hole Shape StyleROUND
Hole Diameter1.000 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4320-00-631-4859123488-010-01 INTERCHANGEABLE
Pump Unit,rotary
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
Cross-Reference Index
Part NumberManufacturer
605851 General Motors Corp (USA)
137854H Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
137854H Komatsu American Intl Co (USA)
116 Parker Hannifin Corporation Div Chelsea Products Division (USA)
16A3370 Napco International Llc Dba Napco International Inc (USA)
116 Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (USA)
116 Central Fibre Products Co (USA)
137854H Komatsu America Corp. (USA)
137854H Navistar International Corporation Dba Navistar (USA)
16A4601 Napco International Llc Dba Napco International Inc (USA)
Related Parts
4320-00-631-4859INTERCHANGEABLE
PUMP UNIT,ROTARY
123488-010-01

Frequently Asked Questions

What is NSN 5310-00-039-6127?

NSN 5310-00-039-6127 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 5310-00-039-6127?

NSN 5310-00-039-6127 has 10 cross-referenced part numbers: 605851 (General Motors Corp), 137854H (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 137854H (Komatsu American Intl Co), 116 (Parker Hannifin Corporation Div Chelsea Products Division), 16A3370 (Napco International Llc Dba Napco International Inc) and 5 more.

What NSN replaces 5310-00-039-6127?

There is 1 known substitute for 5310-00-039-6127: 4320-00-631-4859. Verify interchangeability with system specifications before substitution.

What are the specifications of 605851?

Key specifications for 605851: Overall Diameter: 1.375 INCHES NOMINAL IN; Peripheral Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Thickness: 0.0897 INCHES NOMINAL IN. 9 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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