The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-374-7668, 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20 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-374-7668 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Nut Length | 0.587 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNJC |
| Hardness Rating | 49.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 5085 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6351 ASSN STD 2ND MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS 5085 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Material Document and Classification | AMS 5639 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5514 ASSN STD 2ND MATERIAL RESPONSE FLANGE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.166 INCHES IN |
| Pilot Diameter | 0.270 INCHES MAXIMUM IN |
| Pilot Length | 0.192 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.462 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | SPLINE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 1050 SHELL |
| Material | STEEL COMP 1050 AND STEEL COMP 4130 NUT |
| Material | STEEL COMP 304 AND STEEL COMP 305 FLANGE |
| 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 |
|---|---|
| ES8411-101 | 5/1 Secondary reference U.S. Government activity |
| ES8411-101 | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
| MS14200-08-10 | 2/2 Government specification standardization U.S. Government activity |
NSN 5310-01-374-7668 is a Nut,self-Locking,spline, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-374-7668: Nut Length: 0.587 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNJC; Hardness Rating: 49.0 ROCKWELL C MAXIMUM. 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.