The Nut,self-Locking,castellated,hex, cataloged under National Stock Number 5310-01-030-0630, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-030-0630 |
| Item Name | Nut,self-Locking,castellated,hex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 1.489 INCHES MINIMUM AND 1.502 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TYPE II CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT |
| Thread Series | UNS |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.000 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.750 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL EXCEPT INSERT |
| Nut Style | CASTELLATED, HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 14 |
| Material | STEEL OVERALL EXCEPT INSERT |
| Material | PLASTIC LOCKING INSERT |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| 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 |
|---|---|
| 2643735 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5310-01-030-0630 is a Nut,self-Locking,castellated,hex, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-030-0630: Width Across Flats: 1.489 INCHES MINIMUM AND 1.502 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TYPE II CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT; Thread Series: UNS; Thread Direction: RIGHT-HAND. 14 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.