The Pin-Rivet, cataloged under National Stock Number 5320-01-666-2181, 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 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-666-2181 |
| Primary Part Number | HL12VAZ-12-17 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.3735 INCHES MINIMUM AND 0.3740 INCHES MAXIMUM IN |
| Head Height | 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 1.608 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | HI KOTE 1,CAGEC 73197 MFR REF MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Collar Style | THREADED BREAK OFF TYPE |
| Material Document and Classification | SAE-AMS4928 NATIONAL SPEC SINGLE MATERIAL RESPONSE OR SAE-AMS4967 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | STRAIGHT PAN |
| Nominal Thread Size | 0.375 INCHES IN |
| Grip Length | 1.063 INCHES NOMINAL IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | ALUMINUM OVERALL |
| Shear Strength | 21000 DOUBLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | TITANIUM ALLOY 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 |
|---|---|
| HL12VAZ-12-17 | Howmet Global Fastening Systems Inc (USA) |
| HL12VAZ-12-17 PRIMARY | Hi-Shear Corporation (USA) |
| HL12VAZ-12-17 | Huck International, Inc (USA) |
| HL12VAZ-12-17 | West Coast Aerospace, Inc. (USA) |
| HL12VAZ-12-17 | Sps Technologies, Llc Dba PB Fasteners (USA) |
NSN 5320-01-666-2181 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-666-2181 has 5 manufacturer part numbers on file: HL12VAZ-12-17 (Howmet Global Fastening Systems Inc), HL12VAZ-12-17 (Hi-Shear Corporation), HL12VAZ-12-17 (Huck International, Inc), HL12VAZ-12-17 (West Coast Aerospace, Inc.), HL12VAZ-12-17 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for HL12VAZ-12-17: Shank Diameter: 0.3735 INCHES MINIMUM AND 0.3740 INCHES MAXIMUM IN; Head Height: 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 1.608 INCHES NOMINAL IN; Surface Treatment Document and Classification: HI KOTE 1,CAGEC 73197 MFR REF MFR REF SINGLE TREATMENT RESPONSE OVERALL. 17 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.