The Bolt,shear, cataloged under National Stock Number 5306-01-044-0737, 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 16 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-044-0737 |
| Primary Part Number | BM17020-7-18 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Thread Length | 0.440 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.101 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.437 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Width Between Flats | 0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.450 INCHES MINIMUM AND 1.482 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| AIC516B7D18 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GB511B7D18 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| GB511B7D18 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VAL22034-7FS18 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GB511B7D18 | Hi-Shear Corporation (USA) |
| GB511B7D18 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VAL22034-7GS18 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| VS3071-7F18D | Howmet Global Fastening Systems Inc (USA) |
| BM17020-7-18 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| BM17020-7-18 | 5/9 Secondary reference U.S. Government activity |
| GB511B7D18 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| EWSB22D7-18 | 5/2 Secondary reference U.S. Government activity |
| VS3071-7F18D | 5/9 Secondary reference U.S. Government activity |
| EWSB22D7-18 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| GB511B7D18 | 5/2 Secondary reference U.S. Government activity |
| H401-7D18 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-044-0737 is a Bolt,shear, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-044-0737 has 9 manufacturer part numbers on file: AIC516B7D18 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), GB511B7D18 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), GB511B7D18 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VAL22034-7FS18 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GB511B7D18 (Hi-Shear Corporation) and 4 more.
Key specifications for BM17020-7-18: Head Height: 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN; Thread Length: 0.440 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN; Hardness Rating: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL; Shank Unthreaded Hole Diameter: 0.101 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN. 16 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.