The Washer,key, cataloged under National Stock Number 5310-01-267-7445, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-267-7445 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| External Straight Key Length | 0.8282 INCHES MINIMUM AND 0.8594 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 2.0938 INCHES NOMINAL IN |
| Heat Treatment | ANNEALED |
| Style Designator | KEY |
| Material Document and Classification | QQ-A-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.1719 INCHES MINIMUM AND 1.2031 INCHES MAXIMUM IN |
| Peening Key Length | 0.6562 INCHES NOMINAL IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| External Straight Key Width | 0.3594 INCHES MINIMUM AND 0.3906 INCHES MAXIMUM IN |
| External Key Quantity | 7 |
| Material | NICKEL ALLOY 400 OVERALL |
| Hole Diameter | 0.7656 INCHES MINIMUM AND 0.7968 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 |
|---|---|
| 2640-328 PIECE 101 | 5/2 Secondary reference U.S. Government activity |
| SS-845-2050868 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2050868 PIECE 101 | 5/2 Secondary reference U.S. Government activity |
| 60-28-6587 | 5/1 Secondary reference U.S. Government activity |
| 845-2050868PC10 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 845-2050868 PIECE 101 | 3/2 Design control — primary reference U.S. Government activity |
| SS845-2050868 PIECE 101 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-267-7445 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-267-7445: External Straight Key Length: 0.8282 INCHES MINIMUM AND 0.8594 INCHES MAXIMUM IN; Overall Distance Including Keys: 2.0938 INCHES NOMINAL IN; Heat Treatment: ANNEALED; Style Designator: KEY. 12 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.