The Bolt,shear, cataloged under National Stock Number 5306-01-234-9403, 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 21 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-234-9403 |
| Primary Part Number | ST3M753-12DD56 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.098 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN |
| Head Height | 0.472 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN |
| Fastener Length | 3.485 INCHES MINIMUM AND 3.515 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 1.384 INCHES MINIMUM AND 1.394 INCHES MAXIMUM IN |
| Thread Length | 0.927 INCHES MINIMUM AND 1.052 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM ALL HOLES IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.438 INCHES MINIMUM AND 2.458 INCHES MAXIMUM IN |
| Width Between Flats | 0.222 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN |
| Grip Diameter | 0.9980 INCHES MINIMUM AND 0.9990 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 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 3.267 INCHES MINIMUM AND 3.307 INCHES MAXIMUM ALL HOLES 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 |
|---|---|
| MB156-12DD56 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC763-12DD56 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| PBF1267-12DD56 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MB156-12DD56 | Hi-Shear Corporation (USA) |
| ST3M753-12DD56 PRIMARY | The Boeing Company Div Defense (USA) |
| VFK600-12DD56 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GS1032-12DD56 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| Reference | Meaning |
|---|---|
| VS3190-12DD56 | 5/9 Secondary reference U.S. Government activity |
| 10116168 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| VS3190-12DD56 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| S343-12DD56 | 5/9 Secondary reference U.S. Government activity |
| S343-12DD56 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 122897-12DD56 | 5/2 Secondary reference U.S. Government activity |
| ST3M753-12DD56 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-234-9403 is a Bolt,shear, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-234-9403 has 7 manufacturer part numbers on file: MB156-12DD56 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), AIC763-12DD56 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), PBF1267-12DD56 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), MB156-12DD56 (Hi-Shear Corporation), ST3M753-12DD56 (The Boeing Company Div Defense) and 2 more.
Key specifications for ST3M753-12DD56: Extended Washer Thickness: 0.098 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN; Head Height: 0.472 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN; Fastener Length: 3.485 INCHES MINIMUM AND 3.515 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 21 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.