The Nut,self-Locking,assembled Washe, cataloged under National Stock Number 5310-00-421-6834, 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12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-421-6834 |
| Item Name | Nut,self-Locking,assembled Washe |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Washer Outside Diameter | 0.343 INCHES NOMINAL IN |
| Width Across Flats | 0.313 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | 50,FSCM 77948 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.125 INCHES IN |
| Locking Feature | FREE-RUNNING ALL METAL DESIGN |
| Nut Height | 0.109 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | EXTERNAL TOOTH |
| Thread Quantity Per Inch | 40 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 4000081 | 3/9 Design control — primary reference H & E Venture, Llc |
NSN 5310-00-421-6834 is a Nut,self-Locking,assembled Washe, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3010-00-459-9176. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-421-6834: Overall Height: 0.140 INCHES NOMINAL IN; Washer Outside Diameter: 0.343 INCHES NOMINAL IN; Width Across Flats: 0.313 INCHES NOMINAL IN; Surface Treatment Document and Classification: 50,FSCM 77948 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 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.