The Nut,plain,assembled Washer, cataloged under National Stock Number 5310-01-048-1165, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-048-1165 |
| Item Name | Nut,plain,assembled Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Washer Outside Diameter | 0.680 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN |
| Width Across Flats | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Bearing Surface Finish | 125.0 MICROINCHES |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Nut Counterbore Depth | 0.218 INCHES MINIMUM AND 0.238 INCHES MAXIMUM NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Counterbore Diameter | 0.450 INCHES MINIMUM AND 0.460 INCHES MAXIMUM NUT IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | FLAT WITH TURNED BACK EDGE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 NUT |
| 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 |
|---|---|
| NASM21244 | 3/1 Design control — primary reference U.S. Government activity |
| MS21244-6C | 3/2 Design control — primary reference U.S. Government activity |
| MS21244-6C | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-048-1165 is a Nut,plain,assembled Washer, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-048-1165: Overall Height: 0.442 INCHES MINIMUM AND 0.482 INCHES MAXIMUM IN; Washer Outside Diameter: 0.680 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN; Width Across Flats: 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN; Bearing Surface Finish: 125.0 MICROINCHES. 15 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.