The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-310-3665, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-310-3665 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Width Across Flats | 0.310 INCHES MAXIMUM IN |
| Nut Length | 0.435 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| Thread Series | UNJC |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM 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 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Pilot Diameter | 0.217 INCHES MAXIMUM IN |
| Pilot Length | 0.073 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.287 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE NUT |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM LOCKING INSERT |
| Nut Style | SPLINE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 1050 OR STEEL COMP 4130 NUT |
| 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 |
|---|---|
| MS14200-04-2 | 2/2 Government specification standardization U.S. Government activity |
NSN 5310-01-310-3665 is a Nut,self-Locking,spline, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-310-3665: Lubrication: DRY FILM LUBRICANT; Width Across Flats: 0.310 INCHES MAXIMUM IN; Nut Length: 0.435 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE NUT. 20 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.