Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BGS20M220AT11 found under Retainer Aircraft by Trelleborg Sealing Solutions Us Inc. The National Stock Number assigned to this part is 5365016406294, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BGS20M220AT11.