The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-605-4145, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-605-4145 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 2.481 INCHES MINIMUM AND 2.562 INCHES MAXIMUM IN |
| Thread Series | UN |
| Temp Rating | -20.0 FAHRENHEIT MINIMUM AND 130.0 FAHRENHEIT MAXIMUM DEGF |
| Supplementary Features | THIS ITEM IS THE HEAVY HEX NUT SERIES |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-1222,GR 7 ALLOY STEEL MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.625 INCHES IN |
| Nut Height | 1.556 INCHES MINIMUM AND 1.632 INCHES MAXIMUM IN |
| Thread Class | 2B |
| Thread Quantity Per Inch | 8 |
| 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 |
|---|---|
| 522C9002326 | 3/2 Design control — primary reference U.S. Government activity |
| PL90E0515FIND54 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-605-4145 is a Nut,plain,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-605-4145: Width Across Flats: 2.481 INCHES MINIMUM AND 2.562 INCHES MAXIMUM IN; Thread Series: UN; Temp Rating: -20.0 FAHRENHEIT MINIMUM AND 130.0 FAHRENHEIT MAXIMUM DEGF; Supplementary Features: THIS ITEM IS THE HEAVY HEX NUT SERIES. 11 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.