The Nut,self-Locking,barrel, cataloged under National Stock Number 5310-01-706-2635, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-706-2635 |
| Item Name | Nut,self-Locking,barrel |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Nut Length | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS2700 METHOD 1 TYPE 2 OR 8 CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-5626 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Nut Counterbore Depth | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM NUT IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Nut Diameter | 0.587 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.344 INCHES MINIMUM AND 0.354 INCHES MAXIMUM NUT IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.468 INCHES MINIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | FLOATING SELF-LOCKING BARREL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP E4340 NUT |
| Barrel Height | 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| 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 |
|---|---|
| NAS577C5D | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-706-2635 is a Nut,self-Locking,barrel, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-706-2635: Lubrication: DRY FILM LUBRICANT; Nut Length: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS2700 METHOD 1 TYPE 2 OR 8 CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 21 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.