PartsTable TECHNICAL DATA SHEET

NSN 5310-01-666-6275Government record, cited

Washer, Lock5310-01-666-6275

NSN 5310-01-666-6275 · NIIN 016666275 · Part number 09003A0843-4

Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 01365

Government record, cited

NSN 5310-01-666-6275 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-666-6275. Manufacturer of record part number: 09003A0843-4.

Also searched as 5310-01-666-6275 · 5310016666275 · NIIN 016666275 · 01-666-6275 · FSC 5310 Nuts and Washers · CAGE 01365 · 09003A0843-4 · 09003Z0843-4

Nearby stock numbers ← 5310-01-666-6250 Washer, Lock · 5310-01-666-6311 Washer, Lock →

5310-01-666-6275 — Nuts and Washers

Features

Washer,lock — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service

Identification

NSN: 5310-01-666-6275
NIIN: 016666275
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 09003A0843-4
Manufacturer: Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-666-6275, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Technical Specifications

Parameter	Value
NSN	5310-01-666-6275
Primary Part Number	09003A0843-4
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
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
09003A0843-4 PRIMARY	Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (USA)

Reference documents

Reference	Meaning
09003Z0843-4	5/9 Secondary reference Fastenal Company Dba Fastenal Co

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 5310-01-666-6275?

NSN 5310-01-666-6275 is a Washer,lock, manufactured by Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-666-6275?

NSN 5310-01-666-6275 has 1 manufacturer part number on file: 09003A0843-4 (Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service).

What are the specifications of 09003A0843-4?

Key specifications for 09003A0843-4: Part Name Assigned by Controlling Agency: WASHER, LOCK; End Item Identification: KIT, INSTALLATION. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-666-6275 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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