The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-00-279-9155, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-279-9155 |
| Primary Part Number | 70524CM1032-2 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Width Across Flats | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Material Document and Classification | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.065 INCHES MINIMUM AND 0.095 INCHES MAXIMUM NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Specification/standard Data | 76301-ST3-405 MANUFACTURERS STANDARD |
| Counterbore Diameter | 0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM NUT IN |
| Pilot Diameter | 0.273 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN |
| Pilot Length | 0.079 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.246 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 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 |
|---|---|
| 70524CM1032-2 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M405C2-3 | The Boeing Company Div Defense (USA) |
| H49290-3-2 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| C11009-2-3 | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| C11009-2-3 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-279-9155 is a Nut,self-Locking,clinch, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-279-9155 has 4 manufacturer part numbers on file: 70524CM1032-2 (Sps Technologies, Llc Dba PB Fasteners), ST3M405C2-3 (The Boeing Company Div Defense), H49290-3-2 (Howmet Global Fastening Systems Inc), C11009-2-3 (Esna, Llc).
Key specifications for 70524CM1032-2: Lubrication: DRY FILM LUBRICANT; Width Across Flats: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Temp Rating: 450.0 FAHRENHEIT NOMINAL DEGF. 19 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.