Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H308A057-102 found under Spacer Plate by Bae Systems Information And Electronic Systems Integration Inc. The National Stock Number assigned to this part is 5365013909501, 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 H308A057-102.