The Pin-Rivet, cataloged under National Stock Number 5320-01-457-8375, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-457-8375 |
| Primary Part Number | HK0237-12-21 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.3740 INCHES MINIMUM AND 0.3746 INCHES MAXIMUM IN |
| Grip Length | 1.3120 INCHES MAXIMUM IN |
| Shank Style | PIN RIVET, THREADED |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| 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 |
|---|---|
| HK0237-12-21 PRIMARY | Huck International, Inc (USA) |
| HSL529DL-12-21 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HSL529DL-12-21 PRIMARY | Hi-Shear Corporation (USA) |
| HSL529DL-12-21 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HSL529DL-12-21 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| 3D0237-12-21 | 5/2 Secondary reference U.S. Government activity |
| JL11-12-21 | 3/2 Design control — primary reference U.S. Government activity |
| HSL529DL-12-21 | 5/9 Secondary reference Sps Technologies Inc |
| HSL529DL-12-21 | 5/9 Secondary reference U.S. Government activity |
| HSL529DL-12-21 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-457-8375 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-457-8375 has 5 manufacturer part numbers on file: HK0237-12-21 (Huck International, Inc), HSL529DL-12-21 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HSL529DL-12-21 (Hi-Shear Corporation), HSL529DL-12-21 (Sps Technologies, Llc Dba PB Fasteners), HSL529DL-12-21 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for HK0237-12-21: Shank Diameter: 0.3740 INCHES MINIMUM AND 0.3746 INCHES MAXIMUM IN; Grip Length: 1.3120 INCHES MAXIMUM IN; Shank Style: PIN RIVET, THREADED; Material: TITANIUM ALLOY UNS R56400 OVERALL. 4 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.