The Bolt,machine, cataloged under National Stock Number 5306-00-804-0094, 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 18 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-804-0094 |
| Primary Part Number | 51B464-6-21 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.188 INCHES NOMINAL IN |
| Fastener Length | 1.074 INCHES NOMINAL IN |
| Thread Length | 0.391 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76823-51B464 MANUFACTURERS STANDARD |
| Grip Length | 1.312 INCHES NOMINAL IN |
| Width Between Flats | 0.562 INCHES NOMINAL 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 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.584 INCHES NOMINAL 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 | F |
| Part Number | Manufacturer |
|---|---|
| 51B464-6-21 | Howmet Global Fastening Systems Inc (USA) |
| 51B464-6-21 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 51B464-6-21 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 51B464-6-21 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 51B464-6-21 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 51B464-6-21 | 5/2 Secondary reference U.S. Government activity |
| 51B464-6-21 | 5/2 Secondary reference U.S. Government activity |
| 51B464-6-21 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 51B464-6-21 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 51B464-6-21 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 51B464-6-21 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-804-0094 is a Bolt,machine, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-804-0094 has 5 manufacturer part numbers on file: 51B464-6-21 (Howmet Global Fastening Systems Inc), 51B464-6-21 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 51B464-6-21 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 51B464-6-21 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 51B464-6-21 (Hi-Shear Corporation).
Key specifications for 51B464-6-21: Head Height: 0.188 INCHES NOMINAL IN; Fastener Length: 1.074 INCHES NOMINAL IN; Thread Length: 0.391 INCHES MINIMUM IN; Shank Unthreaded Hole Diameter: 0.106 INCHES NOMINAL FIRST HOLE 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.