Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BACS11AM20N found under Seal Conical Flared Tube Fitting by The Boeing Company. The National Stock Number assigned to this part is 4730010708581, 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 BACS11AM20N.