The Washer,key, cataloged under National Stock Number 5310-01-508-8410, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-508-8410 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Internal Prebent Key Width | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-N-281, CLASS A, TYPE 1 FED SPEC 1ST MATERIAL RESPONSE OVERALL |
| Material | NICKEL ALLOY 400 OVERALL |
| Hole Diameter | 0.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 2141715-47 | D/9 Drawing number reference only Naval Sea Systems Command |
| 2141715-47 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-508-8410 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-508-8410: Internal Prebent Key Width: 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Style Designator: KEY; Material Document and Classification: QQ-N-281, CLASS A, TYPE 1 FED SPEC 1ST MATERIAL RESPONSE OVERALL; Special Features: HATCH COVER LOCKING RING TYPE, SPRING & LATCH DETAILS. 5 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.