The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-01-004-0268, 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17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-004-0268 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 350.0 FAHRENHEIT NOMINAL DEGF |
| Material Document and Classification | AISI 303 ASSN STD 2ND MATERIAL RESPONSE NUT |
| Nut Counterbore Depth | 0.060 INCHES NOMINAL NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.086 INCHES IN |
| Nut Diameter | 0.169 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.096 INCHES MINIMUM AND 0.101 INCHES MAXIMUM NUT IN |
| Pilot Diameter | 0.127 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN |
| Pilot Length | 0.057 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.122 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 56 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 303 NUT |
| 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 |
|---|---|
| 960757-2 | 3/2 Design control — primary reference U.S. Government activity |
| 79NCMA2-26 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-004-0268 is a Nut,self-Locking,clinch, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-004-0268: Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 350.0 FAHRENHEIT NOMINAL DEGF; Material Document and Classification: AISI 303 ASSN STD 2ND MATERIAL RESPONSE NUT; Nut Counterbore Depth: 0.060 INCHES NOMINAL NUT IN. 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.