The Pin-Rivet, cataloged under National Stock Number 5320-01-391-7937, 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 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-391-7937 |
| Primary Part Number | HLT423SC12-28 |
| 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 |
| Fastener Length | 2.285 INCHES MINIMUM AND 2.305 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | 258, CAGEC 73197 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.325 INCHES IN |
| Grip Length | 1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN |
| Width Between Flats | 0.1600 INCHES MINIMUM AND 0.1620 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.7556 INCHES MINIMUM AND 0.7614 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 |
|---|---|
| HLT423SC-12-28 | Huck International, Inc (USA) |
| HLT423SC12-28 PRIMARY | Hi-Shear Corporation (USA) |
| HLT423SC12-28 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT423SC-12-28 | West Coast Aerospace, Inc. (USA) |
| HLT423SC-12-28 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HLT423SC-12-28 | 5/9 Secondary reference U.S. Government activity |
| HLT423SC-12-28 | 5/9 Secondary reference Voi-Shan/chatsworth Div of Vsi Corp Sub of Fairchild Industries Inc |
NSN 5320-01-391-7937 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-391-7937 has 5 manufacturer part numbers on file: HLT423SC-12-28 (Huck International, Inc), HLT423SC12-28 (Hi-Shear Corporation), HLT423SC12-28 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HLT423SC-12-28 (West Coast Aerospace, Inc.), HLT423SC-12-28 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for HLT423SC12-28: Shank Diameter: 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN; Fastener Length: 2.285 INCHES MINIMUM AND 2.305 INCHES MAXIMUM IN; Surface Treatment Document and Classification: 258, CAGEC 73197 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Head Style: FLUSH COUNTERSUNK. 15 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.