The Pin-Rivet, cataloged under National Stock Number 5320-01-600-3357, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-600-3357 |
| Primary Part Number | HL646PB-18-28 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Shank Diameter | 0.560 INCHES MINIMUM AND 0.561 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Width Across Flats | 0.252 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Head Height | 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | -QQ-+416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | COUNTERSUNK W/REVERSE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 73197-342 HI-LOK PRODUCTION SPECIFICATION MANUFACTURERS SPECIFICATION |
| Width Between Flats | 0.306 INCHES MINIMUM AND 0.326 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 43500 POUNDS PER SQUARE INCH LBS |
| Shear Strength | 62100 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20.000 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.5625 INCHES NOMINAL 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 |
|---|---|
| HL646PB-18-28 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL646PB-18-28 PRIMARY | Hi-Shear Corporation (USA) |
| HL646PB-18-28 | West Coast Aerospace, Inc. (USA) |
| HL646PB-18-28 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL646PB-18-28 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL646PB-18-28 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HL646PB-18-28 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HL646PB-18-28 | 3/2 Design control — primary reference U.S. Government activity |
| HL646PB-18-28 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-600-3357 is a Pin-Rivet, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-600-3357 has 7 manufacturer part numbers on file: HL646PB-18-28 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL646PB-18-28 (Hi-Shear Corporation), HL646PB-18-28 (West Coast Aerospace, Inc.), HL646PB-18-28 (Sps Technologies, Llc Dba PB Fasteners), HL646PB-18-28 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 2 more.
Key specifications for HL646PB-18-28: Shank Diameter: 0.560 INCHES MINIMUM AND 0.561 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Width Across Flats: 0.252 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN; Head Height: 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN. 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.