The Nut,self-Locking,round, cataloged under National Stock Number 5310-00-174-4026, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-174-4026 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Series | UNJS |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 5.888 INCHES IN |
| Nut Diameter | 6.340 INCHES MINIMUM AND 6.360 INCHES MAXIMUM IN |
| Drive Point Depth | 0.220 INCHES NOMINAL IN |
| Undercut Thickness | 0.439 INCHES MINIMUM AND 0.449 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Thickness | 0.825 INCHES MINIMUM AND 0.835 INCHES MAXIMUM IN |
| Small End Diameter | 6.120 INCHES MINIMUM AND 6.140 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE OVERALL |
| Drive Point Quantity | 27 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 4340 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| 4029T44P01 | 5/9 Secondary reference Mcmellon Bros., Incorporated Dba Mc Mellon Brothers Inc |
| 4029T44P01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-174-4026 is a Nut,self-Locking,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-174-4026: Thread Series: UNJS; Thread Direction: RIGHT-HAND; Nominal Thread Size: 5.888 INCHES IN; Nut Diameter: 6.340 INCHES MINIMUM AND 6.360 INCHES MAXIMUM IN. 15 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.