The Pin-Rivet, cataloged under National Stock Number 5320-00-421-0078, 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 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-00-421-0078 |
| Primary Part Number | HL23-6-6 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| Fastener Length | 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Heat Treatment | T-6 SOLUTION HEAT TREATED OVERALL |
| Material Document and Classification | QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Grip Length | 0.313 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Width Between Flats | 0.079 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | ANODIZE OVERALL |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.349 INCHES MINIMUM AND 0.354 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 |
|---|---|
| HL23-6-6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL23-6-6 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL23-6-6 PRIMARY | Hi-Shear Corporation (USA) |
| HL23-6-6 | Howmet Global Fastening Systems Inc (USA) |
| HL23-6-6 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL23-6-6 | Huck International, Inc (USA) |
| HL23-6-6 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HL23-6-6 | 5/9 Secondary reference U.S. Government activity |
| 5320PL1562431 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| BACB30HA6-6 | 5/9 Secondary reference U.S. Government activity |
| STSAE020F06LA06 | 5/9 Secondary reference U.S. Government activity |
| HL23-6-6 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-00-421-0078 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-421-0078 has 7 manufacturer part numbers on file: HL23-6-6 (Sps Technologies, Llc Dba PB Fasteners), HL23-6-6 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL23-6-6 (Hi-Shear Corporation), HL23-6-6 (Howmet Global Fastening Systems Inc), HL23-6-6 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 2 more.
Key specifications for HL23-6-6: Shank Diameter: 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN; Fastener Length: 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Heat Treatment: T-6 SOLUTION HEAT TREATED 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.