Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P221131 found under Terminal Feedthru by Selex Es Limited. The National Stock Number assigned to this part is 5940007828942, and the Federal Supply Class is 5940 Lugs Terminals And Terminal Strips. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like P221131.