The Pin-Rivet, cataloged under National Stock Number 5320-01-101-8191, 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 19 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-101-8191 |
| Primary Part Number | HL21-5-8 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Shank Diameter | 0.1625 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Fastener Length | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Grip Length | 0.505 INCHES MAXIMUM IN |
| Width Between Flats | 0.0791 INCHES MINIMUM AND 0.0801 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNJC |
| Head Major Diameter | 0.3304 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 |
|---|---|
| HL21-5-8 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL21-5-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL21-5-8 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HL21-5-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 142D5229-107 | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| HL21-5-8 | Satair A/s (DNK) |
| HL21-5-8 | West Coast Aerospace, Inc. (USA) |
| HL21-5-8 | Huck International, Inc (USA) |
| HL21-5-8 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HL21-5-8 | 5/2 Secondary reference U.S. Government activity |
| HL21-5-8 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-101-8191 is a Pin-Rivet, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-101-8191 has 9 manufacturer part numbers on file: HL21-5-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL21-5-8 (Sps Technologies, Llc Dba PB Fasteners), HL21-5-8 (Fairchild Fasteners Europe - Vsd Gmbh), HL21-5-8 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 142D5229-107 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems) and 4 more.
Key specifications for HL21-5-8: Shank Diameter: 0.1625 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Fastener Length: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.