The Bolt,shear, cataloged under National Stock Number 5306-01-435-8751, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-435-8751 |
| Primary Part Number | 51B464-6-39 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Head Height | 0.183 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Fastener Length | 2.828 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.391 INCHES NOMINAL IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-8844 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.437 INCHES NOMINAL 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 AND CHROMATE OVERALL |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 51B464-6-39 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 51B464-6-39 | Northrop Grumman Systems Corporation (USA) |
| 51B464-6-39 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 51B464-6-39 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 51B464-6-39 | Howmet Global Fastening Systems Inc (USA) |
| 51B464-6-39 | Deutsch Co the (USA) |
| 51B464-6-39 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 51B464-6-39 | 5/9 Secondary reference Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 51B464-6-39 | 5/2 Secondary reference U.S. Government activity |
| 51B464-6-39 | 5/9 Secondary reference U.S. Government activity |
| 51B464-6-39 | 7/9 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 5306-01-435-8751 is a Bolt,shear, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-435-8751 has 7 manufacturer part numbers on file: 51B464-6-39 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 51B464-6-39 (Northrop Grumman Systems Corporation), 51B464-6-39 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 51B464-6-39 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 51B464-6-39 (Howmet Global Fastening Systems Inc) and 2 more.
Key specifications for 51B464-6-39: Surface Finish: 32.0 MICROINCHES GRIP; Head Height: 0.183 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN; Fastener Length: 2.828 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 20 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.