The Pin-Rivet, cataloged under National Stock Number 5320-01-591-0082, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-591-0082 |
| Primary Part Number | HL645-12-22 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM |
| Fastener Length | 1.910 INCHES MINIMUM AND 1.930 INCHES MAXIMUM IN |
| Head Style | FLUSH COUNTERSUNK |
| Nominal Thread Size | 0.375 INCHES IN |
| Grip Length | 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN |
| Width Between Flats | 0.158 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.555 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN |
| 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 |
|---|---|
| HL645-12-22 PRIMARY | Hi-Shear Corporation (USA) |
| HL645-12-22 | Howmet Global Fastening Systems Inc (USA) |
| HL645-12-22 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL645-12-22 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| HL645-12-22 | West Coast Aerospace, Inc. (USA) |
| HL645-12-22 | Huck International, Inc (USA) |
| HL645-12-22 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HL645-12-22 | 5/2 Secondary reference U.S. Government activity |
| HL645-12-22 | 5/9 Secondary reference Micromold Products, Inc. |
NSN 5320-01-591-0082 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-591-0082 has 7 manufacturer part numbers on file: HL645-12-22 (Hi-Shear Corporation), HL645-12-22 (Howmet Global Fastening Systems Inc), HL645-12-22 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL645-12-22 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), HL645-12-22 (West Coast Aerospace, Inc.) and 2 more.
Key specifications for HL645-12-22: Shank Diameter: 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN; Lubrication: SOLID FILM; Fastener Length: 1.910 INCHES MINIMUM AND 1.930 INCHES MAXIMUM IN; Head Style: FLUSH COUNTERSUNK. 14 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.