The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-409-1675, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Chief Manufacturing Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-409-1675 |
| Primary Part Number | A-1300-B |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Chief Manufacturing Inc |
| Status | ACTIVE |
| Width Across Flats | 0.736 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nut Height | 0.427 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OR CADMIUM OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL NUT |
| 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 |
|---|---|
| A-1300-B | Brighton Cromwell Llc (USA) |
| A-1300-B PRIMARY | Chief Manufacturing Inc (USA) |
| A-1300-B | Indian Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AAA-01300 | 5/9 Secondary reference U.S. Government activity |
| AAA-01300B | 3/9 Design control — primary reference U.S. Government activity |
| A-1300-B | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-409-1675 is a Nut,self-Locking,hexagon, manufactured by Chief Manufacturing Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-409-1675 has 3 manufacturer part numbers on file: A-1300-B (Brighton Cromwell Llc), A-1300-B (Chief Manufacturing Inc), A-1300-B (Indian Aerospace, Inc.).
Key specifications for A-1300-B: Width Across Flats: 0.736 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.500 INCHES IN. 11 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.