The Pin-Rivet, cataloged under National Stock Number 5320-01-240-4156, 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 20 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-240-4156 |
| Primary Part Number | HL441-6AK19 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.181 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN |
| Fastener Length | 1.5125 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | BMS10-85,TYP I MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Hole Depth | 0.115 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Grip Length | 1.1875 INCHES NOMINAL IN |
| Shoulder Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Shank Style | ERR-090 |
| Surface Treatment | ALUMINUM OVERALL |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Shoulder Length | 1.2745 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.258 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN |
| Hole Diameter | 0.104 INCHES MINIMUM AND 0.119 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 |
|---|---|
| HL441-6AK19 PRIMARY | Hi-Shear Corporation (USA) |
| HL441-6AK19 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| WC131-6AK19 PRIMARY | West Coast Aerospace, Inc. (USA) |
| L-839C-6AK19 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BACB30FN6AK19 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-240-4156 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-240-4156 has 4 manufacturer part numbers on file: HL441-6AK19 (Hi-Shear Corporation), HL441-6AK19 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), WC131-6AK19 (West Coast Aerospace, Inc.), L-839C-6AK19 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for HL441-6AK19: Shank Diameter: 0.181 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN; Fastener Length: 1.5125 INCHES NOMINAL IN; Surface Treatment Document and Classification: BMS10-85,TYP I MFR REF SINGLE TREATMENT RESPONSE OVERALL; Hole Depth: 0.115 INCHES MAXIMUM IN. 20 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.