The Pin-Rivet, cataloged under National Stock Number 5320-01-052-0056, 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 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-052-0056 |
| Primary Part Number | HS26A6-3 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.1884 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM IN |
| Head Height | 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Heat Treatment | T-6 SOLUTION HEAT TREATED OVERALL |
| Material Document and Classification | 00-A-225/9 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Grip Length | 0.188 INCHES MAXIMUM IN |
| 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 |
|---|---|
| HS26A6-3 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M91-6-3 | The Boeing Company Div Defense (USA) |
| HS26A6-3 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HS26A6-3 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-052-0056 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-052-0056 has 3 manufacturer part numbers on file: HS26A6-3 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 3M91-6-3 (The Boeing Company Div Defense), HS26A6-3 (Hi-Shear Corporation).
Key specifications for HS26A6-3: Shank Diameter: 0.1884 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM IN; Head Height: 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Heat Treatment: T-6 SOLUTION HEAT TREATED OVERALL. 9 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.