The Bolt,shear, cataloged under National Stock Number 5306-01-005-0463, 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 21 specifications, cited from the U.S. Government catalog. The record lists 13 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-005-0463 |
| Primary Part Number | S371-6H8 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN |
| Head Height | 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN |
| Fastener Length | 1.099 INCHES MINIMUM AND 1.129 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN |
| Thread Length | 0.589 INCHES MINIMUM AND 0.639 INCHES MAXIMUM IN |
| Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLE |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.055 INCHES NOMINAL 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 |
|---|---|
| 74328-6H8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VS3060-6H8 | Howmet Global Fastening Systems Inc (USA) |
| BM3326-6H8 | Huck International, Inc (USA) |
| VAL23033-6H8 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M571-6H8 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MB84-6H8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M571-6H8 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| S371-6H8 PRIMARY | Huck International, Inc (USA) |
| AIC752-6H8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M571-6H8 | Heartland Precision Fasteners Inc (USA) |
| S11-1059-6H8 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| MB84-6H8 | Hi-Shear Corporation (USA) |
| ST3M571-6H8 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 74328-6H8 | 5/2 Secondary reference U.S. Government activity |
| S371-6H8 | 5/9 Secondary reference U.S. Government activity |
| VS3060-6H8 | 5/9 Secondary reference U.S. Government activity |
| BM3326-6H8 | 5/9 Secondary reference U.S. Government activity |
| ST3M571-6H8 | 5/9 Secondary reference Graybar Electric Company, Inc. |
NSN 5306-01-005-0463 is a Bolt,shear, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-005-0463 has 13 manufacturer part numbers on file: 74328-6H8 (Sps Technologies, Llc Dba PB Fasteners), VS3060-6H8 (Howmet Global Fastening Systems Inc), BM3326-6H8 (Huck International, Inc), VAL23033-6H8 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), ST3M571-6H8 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 8 more.
Key specifications for S371-6H8: Extended Washer Thickness: 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN; Head Height: 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN; Fastener Length: 1.099 INCHES MINIMUM AND 1.129 INCHES MAXIMUM IN; Extended Washer Diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN. 21 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.