The Pin-Rivet, cataloged under National Stock Number 5320-01-535-6140, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Heartland Precision Fasteners Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-535-6140 |
| Primary Part Number | ST3M758D3-6 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Heartland Precision Fasteners Inc |
| Status | ACTIVE |
| Shank Diameter | 0.189 INCHES NOMINAL IN |
| Lubrication | SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Fastener Length | 0.695 INCHES MINIMUM AND 0.715 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | BELT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Grip Length | 0.380 INCHES MAXIMUM IN |
| Width Between Flats | 0.079 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Shear Strength | 125000 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.302 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 |
|---|---|
| ST3M758D3-6 | Heartland Precision Fasteners Inc (USA) |
| ST3M758D3-6 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT631YC-6-6 | Hi-Shear Corporation (USA) |
| HLT631YB-6-6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT631YB-6-6 | West Coast Aerospace, Inc. (USA) |
| HLT631YC-6-6 | West Coast Aerospace, Inc. (USA) |
| HLT631YB-6-6 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3929AS1132-D3-6 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| HLT631YB-6-6 | 5/9 Secondary reference Sps Technologies Inc |
| HLT631YB-6-6 | 5/9 Secondary reference U.S. Government activity |
| HLT631YC-6-6 | 5/9 Secondary reference Huck International, Inc |
| HP4758D3-6 | 3/9 Design control — primary reference Heartland Precision Fasteners Inc |
| HLT631YC-6-6 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HLT631YB-6-6 | 5/9 Secondary reference Hi-Shear Corporation |
| HLT631YC-6-6 | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| HLT631YB-6-6 | 5/9 Secondary reference Huck International, Inc |
| HLT631YC-6-6 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HLT631YC-6-6 | 5/9 Secondary reference U.S. Government activity |
| HLT631YC-6-6 | 5/9 Secondary reference Sps Technologies Inc |
| HLT631YB-6-6 | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| ST3M758D3-6 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5320-01-535-6140 is a Pin-Rivet, manufactured by Heartland Precision Fasteners Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-535-6140 has 8 manufacturer part numbers on file: ST3M758D3-6 (Heartland Precision Fasteners Inc), ST3M758D3-6 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HLT631YC-6-6 (Hi-Shear Corporation), HLT631YB-6-6 (Sps Technologies, Llc Dba PB Fasteners), HLT631YB-6-6 (West Coast Aerospace, Inc.) and 3 more.
Key specifications for ST3M758D3-6: Shank Diameter: 0.189 INCHES NOMINAL IN; Lubrication: SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Fastener Length: 0.695 INCHES MINIMUM AND 0.715 INCHES MAXIMUM IN; Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.