Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RAP-B-200-12U found under by Bsistemi Srl. The National Stock Number assigned to this part is 5340016220156, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RAP-B-200-12U.