Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AMS QQ A 250 12 found under Spacer Plate by Society Of Automotive Engineers Inc. The National Stock Number assigned to this part is 5365013023184, 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 AMS QQ A 250 12.