The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-707-9299, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-707-9299 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 1.184 INCHES MINIMUM IN |
| Surface Treatment Document and Classification | AMS-QQ-P-416 TYPE II CLASS 2 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Hardness Rating | 48.0 ROCKWELL C NOMINAL |
| Washer Thickness | 0.083 INCHES MINIMUM IN |
| Material Document and Classification | AMS6304 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES AND AMS6487 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL |
| Hazardous Substances | CADMIUM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.7500 INCHES IN |
| Specification/standard Data | 80205-NAS-21133 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Counterbore Diameter | 0.750 INCHES MINIMUM AND 0.785 INCHES MAXIMUM OVERALL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM OVERALL |
| Countersink Angle | 85.0 DEGREES MINIMUM OVERALL |
| Drive Point Quantity | 30 |
| Nut Style | SPLINE DRIVE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MS21133-L12 | 3/2 Design control — primary reference U.S. Government activity |
| NASM21133 REV 2 | D/9 Drawing number reference only U.S. Government activity |
NSN 5310-01-707-9299 is a Nut,self-Locking,extended Washer, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5310-01-707-9300. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-707-9299: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.750 INCHES MAXIMUM IN; Washer Outside Diameter: 1.184 INCHES MINIMUM IN; Surface Treatment Document and Classification: AMS-QQ-P-416 TYPE II CLASS 2 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL. 21 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.