The Washer,lock, cataloged under National Stock Number 5310-01-642-1174, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Abb Motors & Mechanical Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Abb Motors & Mechanical Inc (CAGE 54ZA4) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-642-1174 |
| Primary Part Number | 35051-9-AA |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Abb Motors & Mechanical Inc |
| 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 |
|---|---|
| 35051-9-AA PRIMARY | Abb Motors & Mechanical Inc (USA) |
| Reference | Meaning |
|---|---|
| 801629-612 | D/9 Drawing number reference only Abb Motors & Mechanical Inc |
| 801629-612 REV A PC NO 31C | 5/1 Secondary reference Abb Motors & Mechanical Inc |
NSN 5310-01-642-1174 is a Washer,lock, manufactured by Abb Motors & Mechanical Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-642-1174 has 1 manufacturer part number on file: 35051-9-AA (Abb Motors & Mechanical Inc).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-673-2478. 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.