The Bolt,shear, cataloged under National Stock Number 5306-01-056-5442, 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 16 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-056-5442 |
| Primary Part Number | BACB30LM4-15 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 1.348 INCHES MINIMUM AND 1.378 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 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 |
|---|---|
| BACB30LM4-15 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| BACB30LM4-15 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30LM4-15 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30LM4-15 | Boeing Defence Australia Ltd Div Defense, Space & Security (AUS) |
| BACB30LM4-15 | Huck International, Inc (USA) |
| BACB30LM4-15 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30LM4-15 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30LM4-15 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30LM4-15 | Federal Manufacturing Corp (USA) |
| BACB30LM4-15 | Boeing Defence Australia Ltd (AUS) |
| Reference | Meaning |
|---|---|
| BACB30LM4-15 | 7/2 Vendor item drawing reference U.S. Government activity |
| BACB30LM4-15 | 5/9 Secondary reference Voi-Shan/chatsworth Div of Vsi Corp Sub of Fairchild Industries Inc |
NSN 5306-01-056-5442 is a Bolt,shear, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-056-5442 has 10 manufacturer part numbers on file: BACB30LM4-15 (Howmet Global Fastening Systems Inc), BACB30LM4-15 (Sps Technologies, Llc Dba PB Fasteners), BACB30LM4-15 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30LM4-15 (Boeing Defence Australia Ltd Div Defense, Space & Security), BACB30LM4-15 (Huck International, Inc) and 5 more.
Key specifications for BACB30LM4-15: Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 1.348 INCHES MINIMUM AND 1.378 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN. 16 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.