The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-215-7311, 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15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-215-7311 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.922 INCHES MINIMUM AND 0.939 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | DOD-P-16232,TYPE Z,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE NUT |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 250.0 FAHRENHEIT MAXIMUM DEGF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.535 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 11 |
| Material | STEEL NUT |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| MS51943-13 | 5/9 Secondary reference U.S. Government activity |
| M45913/3-10CG8P | 2/2 Government specification standardization U.S. Government activity |
| 418692 | 5/9 Secondary reference Gravely International Inc |
| 591321 | 5/9 Secondary reference Army Weapons Command Attn Amswe-Ree-S |
NSN 5310-01-215-7311 is a Nut,self-Locking,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3010-01-668-6139. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-215-7311: Width Across Flats: 0.922 INCHES MINIMUM AND 0.939 INCHES MAXIMUM IN; Surface Treatment Document and Classification: DOD-P-16232,TYPE Z,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE NUT; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 250.0 FAHRENHEIT MAXIMUM DEGF. 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.