Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B-1 2 1.75 3 1 4J2 found under Cylinder Assembly Actuating Line by Bosch Automation Technology. The National Stock Number assigned to this part is 3040012663693, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B-1 2 1.75 3 1 4J2.