The Bolt,shear, cataloged under National Stock Number 5306-00-126-4394, 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 23 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-126-4394 |
| Primary Part Number | BACB30FD4H4 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN |
| Head Height | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Fastener Length | 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Thread Length | 0.460 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Hole Configuration Style | ROUND LONGITUDINAL HOLE |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Width Between Flats | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.037 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 |
|---|---|
| BACB30FD4H4 | Howmet Global Fastening Systems Inc (USA) |
| BACB30FD4H4 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30FD4H4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30FD4H4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30FD4H4 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30FD4H4 | Huck International, Inc (USA) |
| BACB30FD4H4 | Joslyn Clark Controls, Llc (USA) |
| Reference | Meaning |
|---|---|
| BACB30FD4H4 | 3/2 Design control — primary reference U.S. Government activity |
| BAC30FD4H4 | 5/2 Secondary reference U.S. Government activity |
| BACB30FD4H4 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-126-4394 is a Bolt,shear, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-126-4394 has 7 manufacturer part numbers on file: BACB30FD4H4 (Howmet Global Fastening Systems Inc), BACB30FD4H4 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30FD4H4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30FD4H4 (Sps Technologies, Llc Dba PB Fasteners), BACB30FD4H4 (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 2 more.
Key specifications for BACB30FD4H4: Extended Washer Thickness: 0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN; Head Height: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; Fastener Length: 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 23 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.