The Bolt,shear, cataloged under National Stock Number 5306-01-434-6741, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 25 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-434-6741 |
| Primary Part Number | BACB30US7K34X |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.089 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN |
| Head Height | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Fastener Length | 2.843 INCHES MINIMUM AND 2.873 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | BMS 10-85, TYPE 1, CAGE 81208 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.561 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN |
| Thread Length | 0.733 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM THREADS IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.4375 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.4516 INCHES MINIMUM AND 0.4526 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.621 INCHES MINIMUM AND 2.641 INCHES MAXIMUM THREADS 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 |
|---|---|
| BACB30US7K34X PRIMARY | Huck International, Inc (USA) |
| BACB30US7K34X | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| BACB30US7K34X | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30US7K34X | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30US7K34X | Federal Manufacturing Corp (USA) |
| BACB30US7K34X | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30US7K34X | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30US7K34X | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| Reference | Meaning |
|---|---|
| BACB30US7K34X | 5/2 Secondary reference U.S. Government activity |
| BACB30US7K34X | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-434-6741 is a Bolt,shear, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-434-6741 has 8 manufacturer part numbers on file: BACB30US7K34X (Huck International, Inc), BACB30US7K34X (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), BACB30US7K34X (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30US7K34X (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30US7K34X (Federal Manufacturing Corp) and 3 more.
Key specifications for BACB30US7K34X: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.089 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN. 25 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.