The Bolt,shear, cataloged under National Stock Number 5306-01-651-6556, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-651-6556 |
| Primary Part Number | BACB30US6K15 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN |
| Head Height | 0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Fastener Length | 0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN |
| Thread Length | 0.643 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.284 INCHES MINIMUM AND 0.304 INCHES MAXIMUM IN |
| Width Between Flats | 0.490 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN |
| Grip Diameter | 0.3731 INCHES MINIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 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 |
|---|---|
| BACB30US6K15 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BACB30US6K15 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| BACB30US6K15 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| BACB30US6K15 | Federal Manufacturing Corp (USA) |
| BACB30US6K15 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30US6K15 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30US6K15 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30US6K15 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30US6K15 | Blanc Aero Industrie Villefranche De Rouergue - Groupe Lisi Aerospace (FRA) |
| BACB30US6K15 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BACB30US6K15 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-651-6556 is a Bolt,shear, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-651-6556 has 10 manufacturer part numbers on file: BACB30US6K15 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), BACB30US6K15 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), BACB30US6K15 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), BACB30US6K15 (Federal Manufacturing Corp), BACB30US6K15 (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 5 more.
1 possible match (shared part number, not a government interchangeability claim): 5306-01-687-7690. Verify interchangeability with system specifications before substitution.
Key specifications for BACB30US6K15: Extended Washer Thickness: 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN; Head Height: 0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN; Fastener Length: 0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN; Extended Washer Diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN. 17 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.