The Nut,self-Locking,barrel, cataloged under National Stock Number 5310-01-064-8633, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-064-8633 |
| Item Name | Nut,self-Locking,barrel |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Tolerance Class | 6 INTERNAL |
| Nut Length | 17.463 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | QQ-P-416 FED STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | ISO M |
| Thread Pitch in Millimeters | 1.000 |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 1.524 MILLIMETERS NOMINAL OVERALL MM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 6.0 MILLIMETERS MM |
| Nut Diameter | 12.491 MILLIMETERS NOMINAL MM |
| Counterbore Diameter | 7.938 MILLIMETERS NOMINAL OVERALL MM |
| Locking Feature | FREE-RUNNING ALL METAL DESIGN |
| Nut Height | 10.469 MILLIMETERS NOMINAL MM |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | FLOATING SELF-LOCKING BARREL |
| Material | STEEL COMP 4340 OVERALL |
| Barrel Height | 7.640 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| SL42M6 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-064-8633 is a Nut,self-Locking,barrel, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-064-8633: Thread Tolerance Class: 6 INTERNAL; Nut Length: 17.463 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: QQ-P-416 FED STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: ISO M. 18 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.