The Nut,self-Locking,spline, cataloged under National Stock Number 5310-00-934-0283, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Warfare Center Aircraft Div. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-934-0283 |
| Primary Part Number | 57A5A30-30 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Air Warfare Center Aircraft Div |
| Status | ACTIVE |
| Width Across Flats | 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Nut Counterbore Depth | 0.185 INCHES NOMINAL NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Counterbore Diameter | 0.165 INCHES MINIMUM AND 0.170 INCHES MAXIMUM NUT IN |
| Pilot Diameter | 0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN |
| Pilot Length | 0.195 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.370 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | SPLINE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| 57A5A30-30 PRIMARY | Naval Air Warfare Center Aircraft Div (USA) |
| Reference | Meaning |
|---|---|
| 57A5A30-30 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5310-00-934-0283 is a Nut,self-Locking,spline, manufactured by Naval Air Warfare Center Aircraft Div, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-934-0283 has 1 manufacturer part number on file: 57A5A30-30 (Naval Air Warfare Center Aircraft Div).
Key specifications for 57A5A30-30: Width Across Flats: 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 450.0 FAHRENHEIT MAXIMUM DEGF. 17 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.