The Bolt,shoulder, cataloged under National Stock Number 5306-01-084-1147, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-084-1147 |
| Primary Part Number | ST3M607-8D40 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Head Height | 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN |
| Fastener Length | 3.252 INCHES MINIMUM AND 3.282 INCHES MAXIMUM IN |
| Shoulder Length | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM FIRST SHOULDER IN |
| Extended Washer Diameter | 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.5302 INCHES MINIMUM AND 0.5307 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.742 INCHES MINIMUM AND 0.792 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | 23-112 TYPE A FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 3.006 INCHES MINIMUM AND 3.046 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| MB87-8D40 | Hi-Shear Corporation (USA) |
| ST3M607-8D40 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M607-8D40 PRIMARY | The Boeing Company Div Defense (USA) |
| MB87-8D40 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| VAL23033-8DX40 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| BM3326-8D40Y | 5/9 Secondary reference U.S. Government activity |
| VS3061-8D40 | 5/2 Secondary reference U.S. Government activity |
| 74328-8D40Y | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 74328-8D40Y | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-084-1147 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-084-1147 has 5 manufacturer part numbers on file: MB87-8D40 (Hi-Shear Corporation), ST3M607-8D40 (Reid Products Inc. Dba Reid Products Inc), ST3M607-8D40 (The Boeing Company Div Defense), MB87-8D40 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), VAL23033-8DX40 (Valley-Todeco, Inc. Dba Arconic Fastening Systems).
Key specifications for ST3M607-8D40: Extended Washer Thickness: 0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN; Head Height: 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN; Fastener Length: 3.252 INCHES MINIMUM AND 3.282 INCHES MAXIMUM IN; Shoulder Length: 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM FIRST SHOULDER IN. 20 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.