The Nut,self-Locking,assembled Washe, cataloged under National Stock Number 5310-01-058-3770, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bellofram Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-058-3770 |
| Primary Part Number | 323-634-000-025 |
| Item Name | Nut,self-Locking,assembled Washe |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bellofram Corporation |
| Status | ACTIVE |
| Washer Outside Diameter | 0.400 INCHES NOMINAL IN |
| Width Across Flats | 0.363 INCHES NOMINAL IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.125 INCHES NOMINAL IN |
| Nut Style | PLAIN DISHED |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL NUT |
| Material | STEEL AND RUBBER SYNTHETIC WASHER |
| 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 |
|---|---|
| 323-634-000-025 PRIMARY | Bellofram Corporation (USA) |
| Reference | Meaning |
|---|---|
| 302D314H11 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-058-3770 is a Nut,self-Locking,assembled Washe, manufactured by Bellofram Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-058-3770 has 1 manufacturer part number on file: 323-634-000-025 (Bellofram Corporation).
Key specifications for 323-634-000-025: Overall Height: 0.216 INCHES NOMINAL IN; Washer Outside Diameter: 0.400 INCHES NOMINAL IN; Width Across Flats: 0.363 INCHES NOMINAL IN; Thread Series: UNF. 12 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.