The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-050-3444, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-050-3444 |
| Primary Part Number | 8379271 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Width Across Flats | 0.562 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | MIL-M-20693 COMP A TYPE 1 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT |
| Material Document and Classification | QQ-S-633,FS1112 TO FS1118 FED SPEC ALL MATERIAL RESPONSES NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.266 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL NUT |
| Material | FIBER LOCKING INSERT |
| Bearing Surface Type | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8379271 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 8379271 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
| 8379271 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
NSN 5310-00-050-3444 is a Nut,self-Locking,hexagon, manufactured by General Motors Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-050-3444 has 1 manufacturer part number on file: 8379271 (General Motors Corp).
Key specifications for 8379271: Width Across Flats: 0.562 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: MIL-M-20693 COMP A TYPE 1 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT; Material Document and Classification: QQ-S-633,FS1112 TO FS1118 FED SPEC ALL MATERIAL RESPONSES NUT. 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.