The Pin-Rivet, cataloged under National Stock Number 5320-01-716-3406, 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 18 specifications, cited from the U.S. Government catalog. The record lists 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-716-3406 |
| Primary Part Number | HL646-12-17 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 1.5975 INCHES MINIMUM AND 1.6175 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | COUNTERSUNK W/REVERSE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3750 INCHES IN |
| Grip Length | 1.0575 INCHES MINIMUM AND 1.0675 INCHES MAXIMUM IN |
| Width Between Flats | 0.1582 INCHES MINIMUM AND 0.1617 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 90.0 DEGREES NOMINAL |
| Shear Strength | 125000 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.565 INCHES MINIMUM AND 0.600 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 |
|---|---|
| HL646-12-17 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL646-12-17 | Ankit Fasteners Private Limited (IND) |
| HL646-12-17 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HL646-12-17 | West Coast Aerospace, Inc. (USA) |
| HL646-12-17 | Blanc Aero Technologies (FRA) |
| HL646-12-17 | Howmet Global Fastening Systems Inc (USA) |
| HL646-12-17 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL646-12-17 | Blanc Aero Industries - Groupe Lisi Aerospace (FRA) |
| HL646-12-17 | Ftb Bastener Technology Bestas (TUR) |
| HL646-12-17 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| HL646-12-17 | Huck International, Inc (USA) |
| HL646-12-17 PRIMARY | Hi-Shear Corporation (USA) |
| HL646-12-17 | Minebea Mitsumi Inc. (JPN) |
| HL646-12-17 | Blanc Aero Industries Uk Ltd (GBR) |
| HL646-12-17 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HL646-12-17 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HL646 | D/9 Drawing number reference only Hi-Shear Corporation |
NSN 5320-01-716-3406 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-716-3406 has 16 manufacturer part numbers on file: HL646-12-17 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL646-12-17 (Ankit Fasteners Private Limited), HL646-12-17 (Sps Technologies Ltd, Tj Brooks Division), HL646-12-17 (West Coast Aerospace, Inc.), HL646-12-17 (Blanc Aero Technologies) and 11 more.
Key specifications for HL646-12-17: Shank Diameter: 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 1.5975 INCHES MINIMUM AND 1.6175 INCHES MAXIMUM IN. 18 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.