The Pin-Rivet, cataloged under National Stock Number 5320-01-176-7526, 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 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-176-7526 |
| Primary Part Number | HL221-6-7 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OVERALL |
| 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 |
|---|---|
| HL221-6-7 | Huck International, Inc (USA) |
| HL221-6-7 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL221-6-7 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL221-6-7 | Heartland Precision Fasteners Inc (USA) |
| HL221-6-7 | West Coast Aerospace, Inc. (USA) |
| HL221-6-7 PRIMARY | Hi-Shear Corporation (USA) |
| HL221-6-7 | Howmet Global Fastening Systems Inc (USA) |
NSN 5320-01-176-7526 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-176-7526 has 7 manufacturer part numbers on file: HL221-6-7 (Huck International, Inc), HL221-6-7 (Sps Technologies, Llc Dba PB Fasteners), HL221-6-7 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL221-6-7 (Heartland Precision Fasteners Inc), HL221-6-7 (West Coast Aerospace, Inc.) and 2 more.
Key specifications for HL221-6-7: Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Style: FLUSH COUNTERSUNK; Thread Direction: RIGHT-HAND; Shank Style: PIN-RIVET, STRAIGHT, THREADED. 7 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.