The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-178-8680, 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18 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-178-8680 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Series | UN |
| Criticality Code Justification | ZZZY |
| Hole Configuration Style | CONFIGURATION F |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.891 INCHES IN |
| Nut Diameter | 2.891 INCHES NOMINAL IN |
| Drive Point Depth | 0.156 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Thickness | 0.750 INCHES NOMINAL IN |
| Drive Point Diameter | 0.125 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.125 INCHES NOMINAL IN |
| Drive Point Quantity | 1 |
| Nut Style | ROUND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | COPPER ALLOY OVERALL |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Hole Type and Quantity | 1 DRILLED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 2180963 PC 10 | 5/1 Secondary reference U.S. Government activity |
| 845-2180963,PC. 10 | 3/1 Design control — primary reference U.S. Government activity |
| 2640-697X1 PC 10 | 5/1 Secondary reference U.S. Government activity |
NSN 5310-01-178-8680 is a Nut,self-Locking,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-178-8680: Thread Series: UN; Criticality Code Justification: ZZZY; Hole Configuration Style: CONFIGURATION F; Thread Direction: RIGHT-HAND. 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.