The Pin-Rivet, cataloged under National Stock Number 5320-01-358-3679, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc Div City of Industry Operations. Government technical data includes 18 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-358-3679 |
| Primary Part Number | BACB30FN6A4 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Howmet Global Fastening Systems Inc Div City of Industry Operations |
| Status | ACTIVE |
| Shank Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL |
| Fastener Length | 0.5650 INCHES MINIMUM AND 0.5850 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.1900 INCHES IN |
| Grip Length | 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Width Between Flats | 0.07910 INCHES MINIMUM AND 0.08060 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM AND CHROMATE 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 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.2580 INCHES MINIMUM AND 0.3050 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 |
|---|---|
| BACB30FN6A4 PRIMARY | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| HL441UC-6-4 | West Coast Aerospace, Inc. (USA) |
| HL441UC-6-4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL441UC-6-4 | Huck International, Inc (USA) |
| HL441UC-6-4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL441UC-6-4 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BACB30FN6A4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HL441UC-6-4 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HL441UC-6-4 | 5/9 Secondary reference U.S. Government activity |
| BACB30FN6A4 | 7/2 Vendor item drawing reference U.S. Government activity |
| BACB30FN6A4 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-358-3679 is a Pin-Rivet, manufactured by Howmet Global Fastening Systems Inc Div City of Industry Operations, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-358-3679 has 8 manufacturer part numbers on file: BACB30FN6A4 (Howmet Global Fastening Systems Inc Div City of Industry Operations), HL441UC-6-4 (West Coast Aerospace, Inc.), HL441UC-6-4 (Sps Technologies, Llc Dba PB Fasteners), HL441UC-6-4 (Huck International, Inc), HL441UC-6-4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 3 more.
Key specifications for BACB30FN6A4: Shank Diameter: 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL; Fastener Length: 0.5650 INCHES MINIMUM AND 0.5850 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 18 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.