The Washer,key, cataloged under National Stock Number 5310-01-181-2500, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Acme Products & Engineering Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Washer,key |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Acme Products & Engineering Inc (CAGE 1T943) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-181-2500 |
| Primary Part Number | 658E478 PIECE 13 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Acme Products & Engineering 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 |
|---|---|
| 658E478 PIECE 13 PRIMARY | Acme Products & Engineering Inc (USA) |
| Reference | Meaning |
|---|---|
| 658E478 PIECE 13 | 3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept |
| V2327470 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| V-2327470 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
NSN 5310-01-181-2500 is a Washer,key, manufactured by Acme Products & Engineering Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-181-2500 has 1 manufacturer part number on file: 658E478 PIECE 13 (Acme Products & Engineering Inc).
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.