The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-01-331-6294, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Grimes Aerospace Company. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-331-6294 |
| Primary Part Number | SN-307 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Thread Series | UNJC |
| Precious Material | SILVER |
| Temp Rating | 900.0 FAHRENHEIT NOMINAL DEGF |
| Nut Counterbore Depth | 0.060 INCHES NOMINAL BOSS IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Nut Diameter | 0.291 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.168 INCHES MINIMUM BOSS IN |
| Pilot Diameter | 0.221 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Pilot Length | 0.055 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.230 INCHES NOMINAL IN |
| Surface Treatment | SILVER OVERALL |
| Precious Material and Location | INTERNAL SURFACES SILVER AND EXTERNAL SURFACES SILVER |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SN-307 PRIMARY | Grimes Aerospace Company (USA) |
NSN 5310-01-331-6294 is a Nut,self-Locking,clinch, manufactured by Grimes Aerospace Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-331-6294 has 1 manufacturer part number on file: SN-307 (Grimes Aerospace Company).
Key specifications for SN-307: Thread Series: UNJC; Precious Material: SILVER; Temp Rating: 900.0 FAHRENHEIT NOMINAL DEGF; Nut Counterbore Depth: 0.060 INCHES NOMINAL BOSS IN. 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.