The Bolt,shoulder, cataloged under National Stock Number 5306-01-209-9298, 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 24 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-209-9298 |
| Primary Part Number | ST3M607-12H28 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.168 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Head Height | 0.701 INCHES MINIMUM AND 0.721 INCHES MAXIMUM IN |
| Fastener Length | 2.787 INCHES MINIMUM AND 2.817 INCHES MAXIMUM IN |
| Shoulder Length | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 1.220 INCHES MINIMUM AND 1.230 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.7797 INCHES MINIMUM AND 0.7802 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 1.027 INCHES MINIMUM AND 1.077 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLE |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.804 INCHES MINIMUM AND 0.824 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP XM-13 OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.050 INCHES MINIMUM AND 0.060 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 |
|---|---|
| MB87-12H28 | Hi-Shear Corporation (USA) |
| MB87-12H28 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M607-12H28 PRIMARY | The Boeing Company Div Defense (USA) |
| S11-1063-12H28 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| VAL23033-12H28X | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M607-12H28 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BM3326-12H28Y | 5/9 Secondary reference U.S. Government activity |
| 74328-12H28Y | 5/2 Secondary reference U.S. Government activity |
| BM3326-12H28Y | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 74328-12H28Y | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| VS3061-12H28 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-209-9298 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-209-9298 has 6 manufacturer part numbers on file: MB87-12H28 (Hi-Shear Corporation), MB87-12H28 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M607-12H28 (The Boeing Company Div Defense), S11-1063-12H28 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), VAL23033-12H28X (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 1 more.
Key specifications for ST3M607-12H28: Extended Washer Thickness: 0.168 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Head Height: 0.701 INCHES MINIMUM AND 0.721 INCHES MAXIMUM IN; Fastener Length: 2.787 INCHES MINIMUM AND 2.817 INCHES MAXIMUM IN; Shoulder Length: 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM FIRST SHOULDER IN. 24 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.