The Washer,key, cataloged under National Stock Number 5310-01-062-6478, 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11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-062-6478 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| External Straight Key Length | 0.500 INCHES NOMINAL IN |
| Overall Distance Including Keys | 1.250 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | ASTM A-240 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Peening Key Length | 0.688 INCHES NOMINAL IN |
| Material Thickness | 0.029 INCHES NOMINAL IN |
| External Straight Key Width | 0.156 INCHES NOMINAL IN |
| External Key Quantity | 5 |
| Material | STEEL COMP 316 OVERALL |
| Hole Diameter | 0.469 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 |
|---|---|
| C-14028 PT.4 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| F-19000 PIECE 16-7 | 5/2 Secondary reference U.S. Government activity |
| C-14028 PT4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-062-6478 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-062-6478: External Straight Key Length: 0.500 INCHES NOMINAL IN; Overall Distance Including Keys: 1.250 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: ASTM A-240 ASSN STD SINGLE MATERIAL RESPONSE 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.