The Pin-Rivet, cataloged under National Stock Number 5320-01-667-3710, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-667-3710 |
| Primary Part Number | ST3M813D4-7 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.0993 INCHES MINIMUM AND 0.1013 INCHES MAXIMUM IN |
| Fastener Length | 0.8715 INCHES MINIMUM AND 0.8735 INCHES MAXIMUM IN |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.2500 INCHES IN |
| Grip Length | 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN |
| Width Between Flats | 0.122 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.4700 INCHES MINIMUM AND 0.4770 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| ST3M81D4-7 | West Coast Aerospace, Inc. (USA) |
| ST3M81D4-7 | Hi-Shear Corporation (USA) |
| ST3M81D4-7 | Grimes Aerospace Company (USA) |
| ST3M813D4-7 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M81D4-7 | Heartland Precision Fasteners Inc (USA) |
| ST3M81D4-7 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M81D4-7 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| ST3M81D4-7 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-667-3710 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-667-3710 has 7 manufacturer part numbers on file: ST3M81D4-7 (West Coast Aerospace, Inc.), ST3M81D4-7 (Hi-Shear Corporation), ST3M81D4-7 (Grimes Aerospace Company), ST3M813D4-7 (The Boeing Company Div Defense), ST3M81D4-7 (Heartland Precision Fasteners Inc) and 2 more.
Key specifications for ST3M813D4-7: Head Height: 0.0993 INCHES MINIMUM AND 0.1013 INCHES MAXIMUM IN; Fastener Length: 0.8715 INCHES MINIMUM AND 0.8735 INCHES MAXIMUM IN; Head Style: FLUSH COUNTERSUNK; Thread Direction: RIGHT-HAND. 15 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.