The Bolt,shear, cataloged under National Stock Number 5306-00-288-2227, 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 18 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-288-2227 |
| Primary Part Number | BM3326-3-6 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN |
| Head Height | 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN |
| Fastener Length | 0.757 INCHES MINIMUM AND 0.787 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Thread Length | 0.372 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76301-ST3-571 MANUFACTURERS STANDARD |
| Grip Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Width Between Flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| S11-1059-3-6 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| VAL23033-3-6 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GS1030-3-6 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| MB84-3-6 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC752-3-6 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BM3326-3-6 PRIMARY | Huck International, Inc (USA) |
| ST3M571-3-6 PRIMARY | The Boeing Company Div Defense (USA) |
| VS3060-3-6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| MB84-3-6 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| S371-3-6 | 5/9 Secondary reference U.S. Government activity |
| VS3060-3-6 | 5/9 Secondary reference U.S. Government activity |
| ST3M571-3-6 | 7/2 Vendor item drawing reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| 74328-3-6 | 5/2 Secondary reference U.S. Government activity |
| 74328-3-6 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BM3326-3-6 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-288-2227 is a Bolt,shear, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-288-2227 has 9 manufacturer part numbers on file: S11-1059-3-6 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), VAL23033-3-6 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GS1030-3-6 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), MB84-3-6 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), AIC752-3-6 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 4 more.
Key specifications for BM3326-3-6: Extended Washer Thickness: 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN; Head Height: 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN; Fastener Length: 0.757 INCHES MINIMUM AND 0.787 INCHES MAXIMUM IN; Extended Washer Diameter: 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN. 18 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.