The Nut,plain,assembled Washer, cataloged under National Stock Number 5310-01-144-9589, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-144-9589 |
| Item Name | Nut,plain,assembled Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Washer Outside Diameter | 1.194 INCHES MINIMUM AND 1.224 INCHES MAXIMUM IN |
| Width Across Flats | 0.990 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN |
| Bearing Surface Finish | 125.0 MICROINCHES |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Nut Counterbore Depth | 0.387 INCHES MINIMUM AND 0.407 INCHES MAXIMUM NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Counterbore Diameter | 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM NUT IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | FLAT WITH TURNED BACK EDGE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 302 OR STEEL COMP 321 WASHER |
| 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 |
|---|---|
| MS21244-10C | 3/2 Design control — primary reference U.S. Government activity |
| MS21244-10C | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-144-9589 is a Nut,plain,assembled Washer, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-144-9589: Overall Height: 0.792 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN; Washer Outside Diameter: 1.194 INCHES MINIMUM AND 1.224 INCHES MAXIMUM IN; Width Across Flats: 0.990 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN; Bearing Surface Finish: 125.0 MICROINCHES. 16 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.