The Washer,key, cataloged under National Stock Number 5310-01-209-7974, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Raytheon Company (CAGE 54X10); Raytheon Company Dba Raytheon Co (CAGE 3B150) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-209-7974 |
| Primary Part Number | 975789-1 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| 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 |
|---|---|
| 975789-1 | Raytheon Company (USA) |
| 975789-1 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| W-111 | 5/9 Secondary reference Weslock Co |
| 975789-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 975789-1 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5310-01-209-7974 is a Washer,key, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-209-7974 has 2 manufacturer part numbers on file: 975789-1 (Raytheon Company), 975789-1 (Raytheon Company Dba Raytheon Co).
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.