Washer, Lock5310-01-388-7489

NSN 5310-01-388-7489 · NIIN 013887489 · Part number LSA42M39

Leroy-Somer Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 3R449

Government record, cited

NSN 5310-01-388-7489 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-388-7489. Manufacturer of record part number: LSA42M39.

Also searched as 5310-01-388-7489 · 5310013887489 · NIIN 013887489 · 01-388-7489 · FSC 5310 Nuts and Washers · CAGE 3R449 · LSA42M39

Nearby stock numbers ← 5310-01-388-7486 Nut, Plain, Hexagon · 5310-01-388-7601 Nut, Self-Locking, Hexagon →

5310-01-388-7489 — Nuts and Washers

Features

Washer,lock — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Leroy-Somer Inc

Identification

NSN: 5310-01-388-7489
NIIN: 013887489
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: LSA42M39
Manufacturer: Leroy-Somer Inc

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-388-7489, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Leroy-Somer Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Washer,lock
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Leroy-Somer Inc (CAGE 3R449)

Technical Specifications

Parameter	Value
NSN	5310-01-388-7489
Primary Part Number	LSA42M39
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Leroy-Somer Inc
Status	ACTIVE

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
LSA42M39 PRIMARY	Leroy-Somer Inc (USA)

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 5310-01-388-7489?

NSN 5310-01-388-7489 is a Washer,lock, manufactured by Leroy-Somer Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-388-7489?

NSN 5310-01-388-7489 has 1 manufacturer part number on file: LSA42M39 (Leroy-Somer Inc).

Is NSN 5310-01-388-7489 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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