PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138502Washer,lock

Caterpillar Inc Div Caterpillar Defense · NSN 5310-01-199-9471 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-199-9471 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-199-9471. Primary manufacturer part number: 138502.
Features
  • Washer,lock — FSC 5310
  • 1 verified cross-reference
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-199-9471, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,lock
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersCaterpillar Inc Div Caterpillar Defense (CAGE 11083)
Technical Specifications
ParameterValue
NSN5310-01-199-9471
Primary Part Number138502
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-00-013-8502 INTERCHANGEABLE
Washer,lock
1336-00-070-2472 INTERCHANGEABLE
Generator,gas Pressure,propellan
5999-00-368-4131SK138502 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
2915-00-942-86639-665-4 INTERCHANGEABLE
Housing,valve,nomodulating,fuel
Parker-Hannifin Corporation Dba Pneutronics
Cross-Reference Index
Part NumberManufacturer
138502 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5310-00-013-8502INTERCHANGEABLE
WASHER,LOCK
1336-00-070-2472INTERCHANGEABLE
GENERATOR,GAS PRESSURE,PROPELLAN
5999-00-368-4131INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
SK138502
2915-00-942-8663INTERCHANGEABLE
HOUSING,VALVE,NOMODULATING,FUEL
9-665-4

Frequently Asked Questions

What is NSN 5310-01-199-9471?

NSN 5310-01-199-9471 is a Washer,lock, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-199-9471?

NSN 5310-01-199-9471 has 1 cross-referenced part number: 138502 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5310-01-199-9471?

There are 4 known substitutes for 5310-01-199-9471: 5310-00-013-8502, 1336-00-070-2472, 5999-00-368-4131 and 1 more. Verify interchangeability with system specifications before substitution.

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