PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138530Washer,lock

General Motors Corp · NSN 5310-00-209-2960 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-209-2960 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-209-2960. Primary manufacturer part number: 138530.
Features
  • Washer,lock — FSC 5310
  • Style Designator: FLAT INTERNAL TEETH
  • Hole Diameter: 0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
  • Outside Diameter: 0.325 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
  • Material Thickness: 0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OVERALL
  • 2 verified cross-references
  • Primary manufacturer: General Motors Corp
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-209-2960, 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 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-209-2960
Primary Part Number138530
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
Style DesignatorFLAT INTERNAL TEETH
Hole Diameter0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
Outside Diameter0.325 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
Material Thickness0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-559-0070115544 INTERCHANGEABLE
Washer,lock
Rolls-Royce Solutions America Inc
4820-01-197-8908138530 INTERCHANGEABLE
Seat,valve
Meggitt North Hollywood Inc
Cross-Reference Index
Part NumberManufacturer
138530 General Motors Corp (USA)
138530 General Motors Llc Dba General Motors Llc (USA)
Related Parts
5310-00-559-0070INTERCHANGEABLE
WASHER,LOCK
115544
4820-01-197-8908INTERCHANGEABLE
SEAT,VALVE
138530

Frequently Asked Questions

What is NSN 5310-00-209-2960?

NSN 5310-00-209-2960 is a Washer,lock, manufactured by General Motors Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-209-2960?

NSN 5310-00-209-2960 has 2 cross-referenced part numbers: 138530 (General Motors Corp), 138530 (General Motors Llc Dba General Motors Llc).

What NSN replaces 5310-00-209-2960?

There are 2 known substitutes for 5310-00-209-2960: 5310-00-559-0070, 4820-01-197-8908. Verify interchangeability with system specifications before substitution.

What are the specifications of 138530?

Key specifications for 138530: Style Designator: FLAT INTERNAL TEETH; Hole Diameter: 0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN; Outside Diameter: 0.325 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN; Material Thickness: 0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN. 5 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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