The Pin-Rivet, cataloged under National Stock Number 5320-01-329-4277, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 19 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-329-4277 |
| Primary Part Number | HL440UC-6-6 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Shank Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN |
| Fastener Length | 0.760 INCHES MINIMUM AND 0.780 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 | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Grip Length | 0.370 INCHES MINIMUM AND 0.380 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 |
| Shear Strength | 95000 SINGLE POUNDS PER SQUARE INCH |
| 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 | 0.295 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-6-6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL440UC-6-6 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BACB30FM6A6 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| HL440UC-6-6 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HL440UC-6-6 | 5/9 Secondary reference U.S. Government activity |
| HL440UC-6-6 | 5/2 Secondary reference U.S. Government activity |
| BACB30FM6A6 | 3/2 Design control — primary reference U.S. Government activity |
| HL440UC-6-6 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5320-01-329-4277 is a Pin-Rivet, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-329-4277 has 4 manufacturer part numbers on file: HL440UC-6-6 (Sps Technologies, Llc Dba PB Fasteners), HL440UC-6-6 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), BACB30FM6A6 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), HL440UC-6-6 (Hi-Shear Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5320-01-669-4353. Verify interchangeability with system specifications before substitution.
Key specifications for HL440UC-6-6: Shank Diameter: 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN; Fastener Length: 0.760 INCHES MINIMUM AND 0.780 INCHES MAXIMUM 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.