The Pin-Rivet, cataloged under National Stock Number 5320-01-623-5442, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-623-5442 |
| Primary Part Number | ST3M759C6-18 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Head Height | 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Fastener Length | 1.6075 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | STRAIGHT PAN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Grip Length | 1.0625 INCHES NOMINAL IN |
| Width Between Flats | 0.1582 INCHES MINIMUM AND 0.1617 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.565 INCHES MINIMUM AND 0.600 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 |
|---|---|
| HLT50YB-12-18 | Huck International, Inc (USA) |
| HLT50YB-12-18 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT50YB-12-18 | West Coast Aerospace, Inc. (USA) |
| HLT50YB-12-18 | Hi-Shear Corporation (USA) |
| ST3M759C6-18 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M759C6-18 PRIMARY | The Boeing Company Div Defense (USA) |
| HLT50YB-12-18 | Heartland Precision Fasteners Inc (USA) |
| HLT50YB-12-18 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT50YB-12-18 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 10367781 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HLT50YB-12-18 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-623-5442 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-623-5442 has 9 manufacturer part numbers on file: HLT50YB-12-18 (Huck International, Inc), HLT50YB-12-18 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HLT50YB-12-18 (West Coast Aerospace, Inc.), HLT50YB-12-18 (Hi-Shear Corporation), ST3M759C6-18 (Fastener Innovation Technology, Inc. Dba F I T) and 4 more.
Key specifications for ST3M759C6-18: Shank Diameter: 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN; Head Height: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN; Fastener Length: 1.6075 INCHES NOMINAL IN; Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 15 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.