The Pin-Rivet, cataloged under National Stock Number 5320-01-293-5368, 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 18 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through both NSN and commercial part number lookups. 20 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-293-5368 |
| Primary Part Number | ST3M761C8-9 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Fastener Length | 1.237 INCHES MINIMUM AND 1.257 INCHES MAXIMUM IN |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Grip Length | 0.562 INCHES MAXIMUM IN |
| Width Between Flats | 0.2207 INCHES MINIMUM AND 0.2242 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 | 20 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.770 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 | Y |
| Part Number | Manufacturer |
|---|---|
| ST3M761C8-9 PRIMARY | Huck International, Inc (USA) |
| ST3M761C8-9 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M761C8-9 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M761C8-9 PRIMARY | West Coast Aerospace, Inc. (USA) |
| ST3M761C8-9 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M761C8-9 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M761C8-9 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| HLT52YC-16-9 | 5/9 Secondary reference Hi-Shear Corporation |
| HLT52YC-16-9 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HLT52YB-16-9 | 5/9 Secondary reference U.S. Government activity |
| HLT52YC-16-9 | 5/9 Secondary reference U.S. Government activity |
| HLT52YC-16-9 | 5/9 Secondary reference U.S. Government activity |
| HLT52YC-16-9 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| HLT52YC-16-9 | 5/9 Secondary reference West Coast Aerospace, Inc. |
| HLT52YB-16-9 | 5/9 Secondary reference Hi-Shear Corporation |
| HLT52YB-16-9 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HLT52YB-16-9 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| HLT52YC-16-9 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HLT52YB-16-9 | 5/9 Secondary reference U.S. Government activity |
| HLT52YB-16-9 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| AIC-L-761C8-9 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HLT52YB-16-9 | 5/9 Secondary reference West Coast Aerospace, Inc. |
| ST3M761C8-9 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HP4761-8-9 | 5/9 Secondary reference Heartland Precision Fasteners Inc |
| 10118828 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HLT52YC-16-9 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| HLT52YB-16-9 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5320-01-293-5368 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-293-5368 has 7 manufacturer part numbers on file: ST3M761C8-9 (Huck International, Inc), ST3M761C8-9 (Hi-Shear Corporation), ST3M761C8-9 (Sps Technologies, Llc Dba PB Fasteners), ST3M761C8-9 (West Coast Aerospace, Inc.), ST3M761C8-9 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 2 more.
Key specifications for ST3M761C8-9: Shank Diameter: 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN; Lubrication: SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Fastener Length: 1.237 INCHES MINIMUM AND 1.257 INCHES MAXIMUM IN. 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.