The Washer,key, cataloged under National Stock Number 5310-00-165-8469, 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11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-165-8469 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| External Straight Key Length | 0.312 INCHES NOMINAL IN |
| Overall Distance Including Keys | 1.250 INCHES NOMINAL IN |
| Heat Treatment | H-12 STRAIN HARDENED, 1/4 HARD |
| Style Designator | KEY |
| Material Document and Classification | QG-S-766,CLASS 316,1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Material Thickness | 0.042 INCHES NOMINAL IN |
| External Straight Key Width | 0.312 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.391 INCHES MINIMUM AND 0.421 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 |
|---|---|
| 1282081 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-165-8469 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-165-8469: External Straight Key Length: 0.312 INCHES NOMINAL IN; Overall Distance Including Keys: 1.250 INCHES NOMINAL IN; Heat Treatment: H-12 STRAIN HARDENED, 1/4 HARD; 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.