The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-014-2239, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-014-2239 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.546 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 875.0 FAHRENHEIT NOMINAL DEGF |
| Hardness Rating | 179.0 BRINELL HULTGREN MINIMUM AND 89.9 ROCKWELL C MINIMUM |
| Material Document and Classification | MIL-S-1222,TYPE 2,GRADE H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Nondefinitive Spec/std Data | 2 TYPE AND H SYMBOL |
| Nut Height | 0.280 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Bearing Surface Type | WASHER FACED |
| 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 |
|---|---|
| MIL-S-1222 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-1222 | 4/1 Identification reference U.S. Government activity |
NSN 5310-01-014-2239 is a Nut,plain,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-014-2239: Width Across Flats: 0.546 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 875.0 FAHRENHEIT NOMINAL DEGF; Hardness Rating: 179.0 BRINELL HULTGREN MINIMUM AND 89.9 ROCKWELL C MINIMUM. 14 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.