The Bolt,shear, cataloged under National Stock Number 5306-00-004-3485, 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 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-004-3485 |
| Primary Part Number | 51B464-8A22 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Head Height | 0.245 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Fastener Length | 1.818 INCHES MINIMUM AND 1.859 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.433 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76823-51B464 MANUFACTURERS STANDARD |
| Grip Length | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN |
| Width Between Flats | 0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Grip Diameter | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 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 |
|---|---|
| 51B464-8A22 | Howmet Global Fastening Systems Inc (USA) |
| 51B464-8A22 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 51B464-8A22 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 51B464-8A22 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 51B464-8A22 | Hi-Shear Corporation (USA) |
| 51B464-8A22 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 51B464-8A22 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 51B464-8A22 | 5/2 Secondary reference U.S. Government activity |
| 51B464-8A22 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 51B464-8A22 | 5/9 Secondary reference U.S. Government activity |
| 51B464-8A22 | 5/9 Secondary reference Sps Technologies Inc |
| 51B464-8A22 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 5306-00-004-3485 is a Bolt,shear, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-004-3485 has 7 manufacturer part numbers on file: 51B464-8A22 (Howmet Global Fastening Systems Inc), 51B464-8A22 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 51B464-8A22 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 51B464-8A22 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 51B464-8A22 (Hi-Shear Corporation) and 2 more.
Key specifications for 51B464-8A22: Surface Finish: 32.0 MICROINCHES GRIP; Head Height: 0.245 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Fastener Length: 1.818 INCHES MINIMUM AND 1.859 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC 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.