The Bolt,shear, cataloged under National Stock Number 5306-01-129-0566, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Heartland Precision Fasteners Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-129-0566 |
| Primary Part Number | ST3M807-3-4 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Heartland Precision Fasteners Inc |
| Status | ACTIVE |
| Head Height | 0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Fastener Length | 0.580 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488 TY2 CL3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.319 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.241 INCHES MINIMUM AND 0.261 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| ST3M807-3-4 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| ST3M807-3-4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M807-3-4 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M807-3-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| SC2667-3-4 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 94187-3-4 | 5/9 Secondary reference U.S. Government activity |
| ST3M807-3-4 | 5/9 Secondary reference U.S. Government activity |
| MA5807-3-4 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| ST3M807-3-4 | 3/2 Design control — primary reference U.S. Government activity |
| ST3M807-3-4 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| PBF1268-3-4 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| VS3218-3-4 | 5/9 Secondary reference U.S. Government activity |
| ST3M807-3-4 | 5/9 Secondary reference Ldi Computer Supply |
| 10115794 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5306-01-129-0566 is a Bolt,shear, manufactured by Heartland Precision Fasteners Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-129-0566 has 4 manufacturer part numbers on file: ST3M807-3-4 (Heartland Precision Fasteners Inc), ST3M807-3-4 (Sps Technologies, Llc Dba PB Fasteners), ST3M807-3-4 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), ST3M807-3-4 (Howmet Global Fastening Systems Inc).
Key specifications for ST3M807-3-4: Head Height: 0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN; Fastener Length: 0.580 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-83488 TY2 CL3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.319 INCHES MINIMUM AND 0.369 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.