The Nut,plain,spline, cataloged under National Stock Number 5310-01-372-2674, 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15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-372-2674 |
| Item Name | Nut,plain,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Hardness Rating | 35.0 ROCKWELL C NOMINAL |
| Features Provided | CASEHARDENED |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Nut Diameter | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN |
| Pilot Diameter | 0.228 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN |
| Pilot Length | 0.060 INCHES MAXIMUM IN |
| Nut Height | 0.060 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Surface Treatment | TIN OVERALL |
| Nut Style | SPLINE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| MIL-N-45938/12 | 5/9 Secondary reference U.S. Government activity |
| M45938/12-3 | 5/9 Secondary reference U.S. Government activity |
| M45938/12-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-372-2674 is a Nut,plain,spline, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-372-2674: Surface Treatment Document and Classification: MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Hardness Rating: 35.0 ROCKWELL C NOMINAL; Features Provided: CASEHARDENED. 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.