The Washer,lock, cataloged under National Stock Number 5310-01-422-9287, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Land & Armaments L.p.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Washer,lock |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Amz Alabama Inc. (CAGE 076M6); Bae Systems Land & Armaments L.p. (CAGE 54786) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-422-9287 |
| Primary Part Number | 4397005-012 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bae Systems Land & Armaments L.p. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4397005-012 | Amz Alabama Inc. (USA) |
| 4397005-012 PRIMARY | Bae Systems Land & Armaments L.p. (USA) |
| Reference | Meaning |
|---|---|
| 12484862 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| 456720105408 | 6/9 Informative reference only Ncb Hungary (honvedsegi Egyseges Termekkod) |
| 12484862-007 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 4397005-012 | 3/9 Design control — primary reference Bae Systems Survivability Systems Llc |
NSN 5310-01-422-9287 is a Washer,lock, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-422-9287 has 2 manufacturer part numbers on file: 4397005-012 (Amz Alabama Inc.), 4397005-012 (Bae Systems Land & Armaments L.p.).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-433-0941. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.