The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-582-1253, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-582-1253 |
| Primary Part Number | 420728 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fastenal Company Dba Fastenal Co |
| Status | ACTIVE |
| Width Across Flats | 0.812 INCHES NOMINAL IN |
| Thread Series | NPT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.5625 INCHES IN |
| Locking Feature | SELF-LOCKING |
| Nut Height | 0.280 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 12759-00953 | Fastenal Company Dba Fastenal Co (USA) |
| 420728 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
NSN 5310-01-582-1253 is a Nut,self-Locking,hexagon, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-582-1253 has 2 manufacturer part numbers on file: 12759-00953 (Fastenal Company Dba Fastenal Co), 420728 (Fastenal Company Dba Fastenal Co).
Key specifications for 420728: Width Across Flats: 0.812 INCHES NOMINAL IN; Thread Series: NPT; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.5625 INCHES IN. 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.