The Nut,self-Locking,barrel, cataloged under National Stock Number 5310-01-030-4034, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-030-4034 |
| Item Name | Nut,self-Locking,barrel |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Nut Length | 30.710 MILLIMETERS MINIMUM AND 31.210 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | ISO M |
| Thread Pitch in Millimeters | 1.50 |
| Thread Pitch Diameters | +17.026 TO 17.187 MILLIMETERS MM |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 4.73 MILLIMETERS MINIMUM AND 5.33 MILLIMETERS MAXIMUM NUT MM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 18.0 MILLIMETERS MM |
| Nut Diameter | 30.71 MILLIMETERS MINIMUM AND 30.96 MILLIMETERS MAXIMUM MM |
| Counterbore Diameter | 18.00 MILLIMETERS MINIMUM AND 19.05 MILLIMETERS MAXIMUM NUT MM |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 24.940 MILLIMETERS MAXIMUM MM |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | NON-FLOATING SELF-LOCKING BARREL |
| Material | STEEL COMP 4340 OR STEEL COMP 8740 OVERALL |
| Barrel Height | 18.770 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 |
|---|---|
| SL414M18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-030-4034 is a Nut,self-Locking,barrel, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-030-4034: Nut Length: 30.710 MILLIMETERS MINIMUM AND 31.210 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: ISO M; Thread Pitch in Millimeters: 1.50. 17 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.