The Pin-Rivet, cataloged under National Stock Number 5320-00-455-3570, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-455-3570 |
| Primary Part Number | HL23-5-4 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.162 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| Fastener Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Heat Treatment | AS FABRICATED 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 | 0.164 INCHES IN |
| Grip Length | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Width Between Flats | 0.063 INCHES MINIMUM AND 0.064 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 | UNJC |
| Head Major Diameter | 0.287 INCHES MINIMUM AND 0.292 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 |
|---|---|
| HL23-5-4 | Huck International, Inc (USA) |
| HL23-5-4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL23-5-4 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HL23-5-4 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| HL23-5-4 | 5/2 Secondary reference U.S. Government activity |
| HS5606-5-4 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| STSAE020F05LA04 | 7/2 Vendor item drawing reference U.S. Government activity |
| HL23-5-4 | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| HS5606-5-4 | 5/9 Secondary reference The Boeing Company |
| HL23-5-4 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HL23-5-4 | 5/9 Secondary reference Heartland Precision Fasteners Inc |
| HL23-5-4 | 5/9 Secondary reference West Coast Aerospace, Inc. |
| HL23D-5-4 | C/1 Advisory reference — outside the item-of-supply concept Hi-Shear Corporation |
NSN 5320-00-455-3570 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-455-3570 has 3 manufacturer part numbers on file: HL23-5-4 (Huck International, Inc), HL23-5-4 (Sps Technologies, Llc Dba PB Fasteners), HL23-5-4 (Hi-Shear Corporation).
Key specifications for HL23-5-4: Shank Diameter: 0.162 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN; Fastener Length: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Heat Treatment: AS FABRICATED 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.