Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FD1745 found under Adapter Straight Tube To Boss by Critical Solutions International In. The National Stock Number assigned to this part is 4730015596867, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FD1745.