The Nut,plain,clinch, cataloged under National Stock Number 5310-00-815-2287, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-815-2287 |
| Primary Part Number | ST3M405-3-08 |
| Item Name | Nut,plain,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Width Across Flats | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNJC |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Pilot Diameter | 0.273 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN |
| Pilot Length | 0.099 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Nut Height | 0.256 INCHES MINIMUM AND 0.283 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL 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 |
|---|---|
| ST3M405-3-08 PRIMARY | The Boeing Company Div Defense (USA) |
| 70524-832-3 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| LHC9514-3-82 | Esna, Llc (USA) |
| H29971-08-3 | Satair A/s (DNK) |
| H29971-08-3 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| LHC9514-3-82 | 5/9 Secondary reference Harvard Industries Inc |
| 70524-832-3 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-815-2287 is a Nut,plain,clinch, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-815-2287 has 5 manufacturer part numbers on file: ST3M405-3-08 (The Boeing Company Div Defense), 70524-832-3 (Sps Technologies, Llc Dba PB Fasteners), LHC9514-3-82 (Esna, Llc), H29971-08-3 (Satair A/s), H29971-08-3 (Howmet Global Fastening Systems Inc).
Key specifications for ST3M405-3-08: Width Across Flats: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNJC; Thread Direction: RIGHT-HAND. 12 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.