PartsTable TECHNICAL DATA SHEET

NSN 5310-01-478-7397Government record, cited

Washer, Lock5310-01-478-7397

NSN 5310-01-478-7397 · NIIN 014787397 · Part number 91074A131

Mcmaster-Carr Supply Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 39428

Government record, cited

NSN 5310-01-478-7397 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-478-7397. Manufacturer of record part number: 91074A131.

Also searched as 5310-01-478-7397 · 5310014787397 · NIIN 014787397 · 01-478-7397 · FSC 5310 Nuts and Washers · CAGE 39428 · 91074A131 · 3244024 · 3244024

Nearby stock numbers ← 5310-01-478-7359 Nut, Self-Locking, Double Hexagon · 5310-01-478-7398 →

5310-01-478-7397 — Nuts and Washers

Features

Washer,lock — FSC 5310
2 manufacturer part numbers on file
Manufacturer of record: Mcmaster-Carr Supply Co

Identification

NSN: 5310-01-478-7397
NIIN: 014787397
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 91074A131
Manufacturer: Mcmaster-Carr Supply Co

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-478-7397, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Washer,lock
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Oshkosh Defense Llc (CAGE 75Q65); Mcmaster-Carr Supply Co (CAGE 39428)

Technical Specifications

Parameter	Value
NSN	5310-01-478-7397
Primary Part Number	91074A131
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Mcmaster-Carr Supply Co
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
3244024	Oshkosh Defense Llc (USA)
91074A131 PRIMARY	Mcmaster-Carr Supply Co (USA)

Reference documents

Reference	Meaning
3244024	5/9 Secondary reference Oshkosh Corp

No interchangeability data on file.

Other items in FSC 5310 — Nuts and Washers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5310-00-000-0040

5310-00-000-0040 · Item name not on file

5310-00-000-0077

NUT,PLAIN,ROUND

5310-00-000-0079

WASHER,FLAT

5310-00-000-0079

WASHER,FLAT

5310-00-000-1146

5310-00-000-1146 · Item name not on file

5310-00-000-3815

5310-00-000-3815 · Item name not on file

5310-00-000-4532

5310-00-000-4532 · Item name not on file

5310-00-000-4540

5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-01-478-7397?

NSN 5310-01-478-7397 is a Washer,lock, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-478-7397?

NSN 5310-01-478-7397 has 2 manufacturer part numbers on file: 3244024 (Oshkosh Defense Llc), 91074A131 (Mcmaster-Carr Supply Co).

Is NSN 5310-01-478-7397 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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