The Washer,key, cataloged under National Stock Number 5310-01-183-6831, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-183-6831 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 1.156 INCHES NOMINAL IN |
| External Prebent Key Length | 0.625 INCHES NOMINAL IN |
| Overall Distance Including Keys | 2.906 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Thickness | 0.063 INCHES NOMINAL IN |
| External Prebent Key Width | 0.063 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.531 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 |
|---|---|
| 403112 | 5/9 Secondary reference Standard Forge and Axle Co Inc |
| M10HN138 | 3/9 Design control — primary reference Dana Corp Spicer Trailer Axle Plant |
NSN 5310-01-183-6831 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5985-01-251-8088. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-183-6831: Distance From Centerline to Inside of Prebent Key: 1.156 INCHES NOMINAL IN; External Prebent Key Length: 0.625 INCHES NOMINAL IN; Overall Distance Including Keys: 2.906 INCHES NOMINAL IN; Style Designator: KEY. 8 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.