The Pin-Rivet, cataloged under National Stock Number 5320-01-231-3329, 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 17 specifications, cited from the U.S. Government catalog. The record lists 17 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-231-3329 |
| Primary Part Number | ST3M759C6-9 |
| 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 |
| Lubrication | SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Fastener Length | 1.097 INCHES MINIMUM AND 1.117 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3750 INCHES IN |
| Grip Length | 0.567 INCHES MAXIMUM IN |
| Width Between Flats | 0.1582 INCHES MINIMUM AND 0.1617 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Shear Strength | 125000 SINGLE POUNDS PER SQUARE INCH |
| 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-12-9 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT50YB-12-9 | Tw Metals Ltd (GBR) |
| ST3M759C6-9 PRIMARY | The Boeing Company Div Defense (USA) |
| HLT50YB-12-9 | West Coast Aerospace, Inc. (USA) |
| HLT50YC-12-9 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT50YC-12-9 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT50YB-12-9 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT50YC-12-9 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT50YC-12-9 | Hi-Shear Corporation (USA) |
| HP4759-6-9 | Heartland Precision Fasteners Inc (USA) |
| HLT50YC-12-9 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT50YB-12-9 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT50YC-12-9 | Huck International, Inc (USA) |
| HLT50YB-12-9 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT50YB-12-9 | Huck International, Inc (USA) |
| HLT50YC-12-9 | West Coast Aerospace, Inc. (USA) |
| HLT50YB-12-9 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| AIC-L-759C6-9 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HLT50YB-12-9 | 5/9 Secondary reference U.S. Government activity |
| HLT50YB-12-9 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| HLT50YC-12-9 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| HLT50YC-12-9 | 5/9 Secondary reference U.S. Government activity |
| HLT50YC-12-9 | 5/9 Secondary reference U.S. Government activity |
| HLT50YB-12-9 | 5/9 Secondary reference U.S. Government activity |
| MA4759C6-9 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| HLT50YB-12-9 | 5/9 Secondary reference Af Aerospace Ltd |
NSN 5320-01-231-3329 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-231-3329 has 17 manufacturer part numbers on file: HLT50YB-12-9 (Sps Technologies, Llc Dba PB Fasteners), HLT50YB-12-9 (Tw Metals Ltd), ST3M759C6-9 (The Boeing Company Div Defense), HLT50YB-12-9 (West Coast Aerospace, Inc.), HLT50YC-12-9 (Sps Technologies, Llc Dba PB Fasteners) and 12 more.
Key specifications for ST3M759C6-9: Shank Diameter: 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN; Lubrication: SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN; Fastener Length: 1.097 INCHES MINIMUM AND 1.117 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.