The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-753-4014, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-753-4014 |
| Primary Part Number | 8725151 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Washer Outside Diameter | 0.865 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Width Across Flats | 0.736 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-Z-325 TYPE 2 CLASS 3 FED SPEC 2ND TREATMENT RESPONSE OR QQ-Z-325 TYPE 2 CLASS 3 FED SPEC 3RD TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM |
| Washer Thickness | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Features Provided | CASEHARDENED |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM OR ZINC OR CHROMATE OVERALL |
| Countersink Angle | 108.0 DEGREES MINIMUM AND 112.0 DEGREES MAXIMUM NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 8725151 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-00-753-4014 is a Nut,self-Locking,extended Washer, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-753-4014 has 1 manufacturer part number on file: 8725151 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8725151: Overall Height: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN; Washer Outside Diameter: 0.865 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN; Width Across Flats: 0.736 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-Z-325 TYPE 2 CLASS 3 FED SPEC 2ND TREATMENT RESPONSE OR QQ-Z-325 TYPE 2 CLASS 3 FED SPEC 3RD TREATMENT RESPONSE OVERALL. 16 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.