PartsTable TECHNICAL DATA SHEET

NSN 5310-01-209-7984Government record, cited

Washer, Lock5310-01-209-7984

NSN 5310-01-209-7984 · NIIN 012097984 · Part number 45-291-11-A2

Automatic Switch Company Dba Asco · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 04845

Government record, cited

NSN 5310-01-209-7984 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-209-7984. Manufacturer of record part number: 45-291-11-A2.

Also searched as 5310-01-209-7984 · 5310012097984 · NIIN 012097984 · 01-209-7984 · FSC 5310 Nuts and Washers · CAGE 04845 · 45-291-11-A2 · GV45-291-11-A2

Nearby stock numbers ← 5310-01-209-7983 Washer, Flat · 5310-01-209-7985 Washer, Lock →

5310-01-209-7984 — Nuts and Washers

Features

Washer,lock — FSC 5310
FSC Application Data: NAVY EQUIPMENT
1 manufacturer part number on file
Manufacturer of record: Automatic Switch Company Dba Asco

Identification

NSN: 5310-01-209-7984
NIIN: 012097984
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 45-291-11-A2
Manufacturer: Automatic Switch Company Dba Asco

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-209-7984, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	5310-01-209-7984
Primary Part Number	45-291-11-A2
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Automatic Switch Company Dba Asco
Status	ACTIVE
FSC Application Data	NAVY EQUIPMENT

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
45-291-11-A2 PRIMARY	Automatic Switch Company Dba Asco (USA)

Reference documents

Reference	Meaning
GV45-291-11-A2	5/9 Secondary reference Automatic Switch Company Dba Asco

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 5310-01-209-7984?

NSN 5310-01-209-7984 is a Washer,lock, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-209-7984?

NSN 5310-01-209-7984 has 1 manufacturer part number on file: 45-291-11-A2 (Automatic Switch Company Dba Asco).

What are the specifications of 45-291-11-A2?

Key specifications for 45-291-11-A2: FSC Application Data: NAVY EQUIPMENT. 1 specification is documented in the U.S. Government catalog.

Is NSN 5310-01-209-7984 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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