The Pin-Rivet, cataloged under National Stock Number 5320-01-351-9448, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-351-9448 |
| Primary Part Number | HLT644-12-20 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Shank Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.1500 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM IN |
| Fastener Length | 1.7850 INCHES MINIMUM AND 1.8050 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | HI-SHEAR 285,CAGEC 73197 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3750 INCHES IN |
| Grip Length | 1.2450 INCHES MINIMUM AND 1.2600 INCHES MAXIMUM IN |
| Width Between Flats | 0.1582 INCHES MINIMUM AND 0.1617 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Shear Strength | 177000 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 | 0.5650 INCHES MINIMUM AND 0.6000 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 |
|---|---|
| HLT644-12-20 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| HLT644-12-20 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT644-12-20 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT644-12-20 PRIMARY | Hi-Shear Corporation (USA) |
| HLT644-12-20 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HLT644-12-20 | 5/9 Secondary reference U.S. Government activity |
| HLT644-12-20 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-351-9448 is a Pin-Rivet, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-351-9448 has 5 manufacturer part numbers on file: HLT644-12-20 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), HLT644-12-20 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HLT644-12-20 (Sps Technologies, Llc Dba PB Fasteners), HLT644-12-20 (Hi-Shear Corporation), HLT644-12-20 (Huck International, Inc).
Key specifications for HLT644-12-20: Shank Diameter: 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.1500 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM IN; Fastener Length: 1.7850 INCHES MINIMUM AND 1.8050 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.