The Washer,lock, cataloged under National Stock Number 5310-01-476-0349, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Company. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Mcmaster-Carr Supply Company (CAGE 2V507); Applied Physical Sciences Corp Dba Applied Physical Sciences Corp (CAGE 1ZG32) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-476-0349 |
| Primary Part Number | 91118A112 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Company |
| 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 |
|---|---|
| 91118A112 PRIMARY | Mcmaster-Carr Supply Company (USA) |
| 5444-166 ITEM 7 | Applied Physical Sciences Corp Dba Applied Physical Sciences Corp (USA) |
| 91118A112 | Applied Physical Sciences Corp Dba Applied Physical Sciences Corp (USA) |
| Reference | Meaning |
|---|---|
| 5444-166 | D/9 Drawing number reference only C & M Technology Inc |
| 5444-166 ITEM 7 | 5/9 Secondary reference C & M Technology Inc |
| 5444-167 ITEM 7 | C/1 Advisory reference — outside the item-of-supply concept C & M Technology Inc |
| 0.25 NOM MONEL | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 5444-168 ITEM 7 | C/1 Advisory reference — outside the item-of-supply concept C & M Technology Inc |
NSN 5310-01-476-0349 is a Washer,lock, manufactured by Mcmaster-Carr Supply Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-476-0349 has 3 manufacturer part numbers on file: 91118A112 (Mcmaster-Carr Supply Company), 5444-166 ITEM 7 (Applied Physical Sciences Corp Dba Applied Physical Sciences Corp), 91118A112 (Applied Physical Sciences Corp Dba Applied Physical Sciences Corp).
1 possible match (shared part number, not a government interchangeability claim): 3895-01-559-5322. 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.