The Bolt,shear, cataloged under National Stock Number 5306-00-003-6744, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-003-6744 |
| Primary Part Number | 51B464-6-12 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.183 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Fastener Length | 1.131 INCHES MINIMUM AND 1.172 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.371 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76823-51B464 MANUFACTURERS STANDARD |
| Grip Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Width Between Flats | 0.552 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Grip Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.011 INCHES MINIMUM AND 1.052 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 |
|---|---|
| 51B464-6-12 | Howmet Global Fastening Systems Inc (USA) |
| 51B464-6-12 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 51B464-6-12 | J M Precision Inc (USA) |
| 51B464-6-12 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 51B464-6-12 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 51B464-6-12 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 51B464-6-12 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 51B464-6-12 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 51B464-6-12 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 51B464-6-12 | 5/2 Secondary reference U.S. Government activity |
| 51B464-6-12 | 5/2 Secondary reference U.S. Government activity |
| 51B464-6-12 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 51B464-6-12 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-003-6744 is a Bolt,shear, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-003-6744 has 6 manufacturer part numbers on file: 51B464-6-12 (Howmet Global Fastening Systems Inc), 51B464-6-12 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 51B464-6-12 (J M Precision Inc), 51B464-6-12 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 51B464-6-12 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 1 more.
Key specifications for 51B464-6-12: Head Height: 0.183 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN; Fastener Length: 1.131 INCHES MINIMUM AND 1.172 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.371 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN. 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.