The Pin-Rivet, cataloged under National Stock Number 5320-01-528-0281, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-528-0281 |
| Primary Part Number | HL22-77-6-4 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Shank Diameter | 0.189 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Head Height | 0.055 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Chamfer Length | 0.059 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS-A-8625 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS-QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | STRAIGHT PAN |
| Grip Length | 0.500 INCHES NOMINAL IN |
| Width Between Flats | 0.104 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Head Major Diameter | 0.295 INCHES MINIMUM AND 0.315 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 |
|---|---|
| HL22-77-6-4 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL22-77-6-4 | West Coast Aerospace, Inc. (USA) |
| HL22-77-6-4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL22-77-6-4 PRIMARY | Hi-Shear Corporation (USA) |
| HL22-77-6-4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HL22-77-6-4 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-528-0281 is a Pin-Rivet, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-528-0281 has 5 manufacturer part numbers on file: HL22-77-6-4 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL22-77-6-4 (West Coast Aerospace, Inc.), HL22-77-6-4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL22-77-6-4 (Hi-Shear Corporation), HL22-77-6-4 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for HL22-77-6-4: Shank Diameter: 0.189 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Head Height: 0.055 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN; Fastener Length: 0.250 INCHES NOMINAL IN; Chamfer Length: 0.059 INCHES NOMINAL IN. 13 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.