The Bolt,shear, cataloged under National Stock Number 5306-01-406-3057, 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 19 specifications, cited from the U.S. Government catalog. The record lists 11 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-406-3057 |
| Primary Part Number | BM336-9-28 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.123 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN |
| Head Height | 0.547 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN |
| Fastener Length | 2.570 INCHES MINIMUM AND 2.600 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.928 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Thread Length | 0.849 INCHES NOMINAL IN |
| Material Document and Classification | PH13-8MO MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.736 INCHES NOMINAL IN |
| Width Between Flats | 0.627 INCHES NOMINAL IN |
| Grip Diameter | 0.561 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP XM-13 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 |
|---|---|
| ST3M571-9-28 | The Boeing Company Div Defense (USA) |
| BM336-9-28 PRIMARY | Huck International, Inc (USA) |
| ST3M571-9-28 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VAL23033-9-28 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB84-9-28 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| MB84-9-28 PRIMARY | Hi-Shear Corporation (USA) |
| VS3060-9-28 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| S11-1059-9-28 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 74328-9-28 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| AIC752-9-28 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| S371-9-28 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| ST3M571-9-28 | 5/2 Secondary reference U.S. Government activity |
| VS3060-9-28 | 5/9 Secondary reference U.S. Government activity |
| S371-9-28 | 5/9 Secondary reference U.S. Government activity |
| BM336-9-28 | 5/9 Secondary reference U.S. Government activity |
| 74328-9-28 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-406-3057 is a Bolt,shear, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-406-3057 has 11 manufacturer part numbers on file: ST3M571-9-28 (The Boeing Company Div Defense), BM336-9-28 (Huck International, Inc), ST3M571-9-28 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VAL23033-9-28 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), MB84-9-28 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 6 more.
Key specifications for BM336-9-28: Extended Washer Thickness: 0.123 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN; Head Height: 0.547 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN; Fastener Length: 2.570 INCHES MINIMUM AND 2.600 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 19 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.