The Washer,key, cataloged under National Stock Number 5310-00-443-2834, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-443-2834 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.390 INCHES NOMINAL IN |
| External Prebent Key Length | 0.018 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 0.811 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Material Thickness | 0.025 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE FILM OVERALL |
| External Prebent Key Width | 0.184 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 0.500 INCHES MINIMUM AND 0.503 INCHES MAXIMUM 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 |
|---|---|
| 1045-37B | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-443-2834 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-443-2834: Distance From Centerline to Inside of Prebent Key: 0.390 INCHES NOMINAL IN; External Prebent Key Length: 0.018 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN; Overall Distance Including Keys: 0.811 INCHES NOMINAL IN; Style Designator: KEY. 11 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.