Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E102170 PC NO 51 found under Adapter Straight Tube To Boss by Control Flow Inc. The National Stock Number assigned to this part is 4730010199815, 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 E102170 PC NO 51.