The Washer,key, cataloged under National Stock Number 5310-00-485-8281, 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12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-485-8281 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Internal Straight Key Width | 0.115 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.241 INCHES NOMINAL IN |
| Heat Treatment | AS FABRICATED |
| Outside Diameter | 0.938 INCHES NOMINAL IN |
| Material Thickness | 0.042 INCHES NOMINAL IN |
| External Straight Key Width | 0.125 INCHES NOMINAL IN |
| External Key Quantity | 6 |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 1010 OVERALL |
| Internal Key Quantity | 1 |
| Angle Between External Keys | 30.0 DEGREES NOMINAL |
| Hole Diameter | 0.684 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 |
|---|---|
| 1435-03 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-00-485-8281 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-485-8281: Internal Straight Key Width: 0.115 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.241 INCHES NOMINAL IN; Heat Treatment: AS FABRICATED; Outside Diameter: 0.938 INCHES NOMINAL IN. 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.