The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-406-6960, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 27 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-406-6960 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.465 INCHES MAXIMUM IN |
| Nut Length | 0.665 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE BOSS |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE SHELL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Hardness Rating | 49.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS5085 ASSN STD 1ST MATERIAL RESPONSE OR AMS6351 ASSN STD 2ND MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS5085 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Material Document and Classification | AMS5639 ASSN STD 1ST MATERIAL RESPONSE OR AMS5514 ASSN STD 2ND MATERIAL RESPONSE BOSS |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Pilot Diameter | 0.335 INCHES MAXIMUM IN |
| Pilot Length | 0.130 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.455 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM NUT |
| Surface Treatment | CADMIUM AND CHROMATE SHELL |
| Surface Treatment | CADMIUM AND CHROMATE BOSS |
| Nut Style | SPLINE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 1050 SHELL |
| Material | STEEL COMP 1050 OR STEEL COMP 4130 NUT |
| Material | STEEL COMP 304 OR STEEL COMP 305 BOSS |
| 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 |
|---|---|
| MS14200-4-6 | 5/9 Secondary reference U.S. Government activity |
| MS14200-4-6 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-406-6960 is a Nut,self-Locking,spline, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-406-6960: Width Across Flats: 0.465 INCHES MAXIMUM IN; Nut Length: 0.665 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE NUT; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE BOSS. 27 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.