The Washer,key, cataloged under National Stock Number 5310-00-480-2702, 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11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-480-2702 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ESS-001,FSCM 06311 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Distance Including Keys | 0.700 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | MIL-S-5059,COND A MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 0.260 INCHES NOMINAL IN |
| Material Thickness | 0.028 INCHES NOMINAL IN |
| External Straight Key Width | 0.062 INCHES NOMINAL IN |
| External Key Quantity | 7 |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| Hole Diameter | 0.191 INCHES MINIMUM AND 0.193 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 |
|---|---|
| 41001779 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-480-2702 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-480-2702: Surface Treatment Document and Classification: ESS-001,FSCM 06311 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Distance Including Keys: 0.700 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: MIL-S-5059,COND A MIL SPEC ALL MATERIAL RESPONSES OVERALL. 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.