The Washer,key, cataloged under National Stock Number 5310-01-076-0550, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-076-0550 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| 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 |
| Reference | Meaning |
|---|---|
| NAS1193K4-1 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1193 | 3/1 Design control — primary reference U.S. Government activity |
| 5310PL0748735 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-01-076-0550 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-076-0550: Special Features: CRES,17-4PH PER AMS 5355,0.255 IN. MIN 0.265 IN. MAX ID,0.440 IN. MIN 0.460 IN. MAX OD,0.043 IN. THK,36 SERRATIONS EQUALLY SPACED AROUND ENTIRE FACE OF WASHER,FOR USE WITH A 0.2500-28 THREADED TERMINAL,LOCKWIRE ATTACHING FEATURE INCLUDED IN; Part Name Assigned by Controlling Agency: WASHER,LOCKING DEVICE. 0 specifications are documented in the U.S. Government catalog.
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.