The Pin-Rivet, cataloged under National Stock Number 5320-01-347-5431, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-347-5431 |
| Primary Part Number | HL440UC-6-3 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.1879 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL |
| Head Height | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN |
| Fastener Length | 0.503 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN |
| Identification Code Color | GREEN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Grip Length | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN |
| Width Between Flats | 0.0791 INCHES MINIMUM AND 0.0806 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| HL440UC-6-3 | Huck International, Inc (USA) |
| HL440UC-6-3 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL440UC-6-3 | Howmet Global Fastening Systems Inc (USA) |
| 5HL440UC-6-3 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL440UC-6-3 | West Coast Aerospace, Inc. (USA) |
| BACB30FM6A3 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL440UC-6-3 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| BACB30FM6A3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-347-5431 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-347-5431 has 7 manufacturer part numbers on file: HL440UC-6-3 (Huck International, Inc), HL440UC-6-3 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL440UC-6-3 (Howmet Global Fastening Systems Inc), 5HL440UC-6-3 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL440UC-6-3 (West Coast Aerospace, Inc.) and 2 more.
Key specifications for HL440UC-6-3: Shank Diameter: 0.1879 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL; Head Height: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN; Fastener Length: 0.503 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN. 17 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.