The Pin-Rivet, cataloged under National Stock Number 5320-01-665-4104, 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 19 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-665-4104 |
| Primary Part Number | HL20-12-20 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 1.795 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | -QQ-P-416, TYPE I, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 6415 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6349 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6382 ASSN STD 3RD MATERIAL RESPONSE OR AMS 6322 ASSN STD 4TH MATERIAL RESPONSE OVERALL |
| Head Style | STRAIGHT PAN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Grip Length | 1.250 INCHES NOMINAL IN |
| Width Between Flats | 0.197 INCHES MINIMUM AND 0.217 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.530 INCHES MINIMUM AND 0.565 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 |
|---|---|
| HL20-12-20 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HL20-12-20 | Huck International, Inc (USA) |
| HL20-12-20 | Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace (USA) |
| HL20-12-20 PRIMARY | Hi-Shear Corporation (USA) |
| HL20-12-20 | West Coast Aerospace, Inc. (USA) |
| HL20-12-20 | Heartland Precision Fasteners Inc (USA) |
| HL20-12-20 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| HL20-12-20 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| HL20-12-20 | 5/2 Secondary reference U.S. Government activity |
| HL20-12-20 | 5/2 Secondary reference U.S. Government activity |
| HL20-12-20 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-665-4104 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-665-4104 has 8 manufacturer part numbers on file: HL20-12-20 (Fastener Innovation Technology, Inc. Dba F I T), HL20-12-20 (Huck International, Inc), HL20-12-20 (Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace), HL20-12-20 (Hi-Shear Corporation), HL20-12-20 (West Coast Aerospace, Inc.) and 3 more.
Key specifications for HL20-12-20: Shank Diameter: 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 1.795 INCHES NOMINAL IN. 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.