Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BCP50001-217C found under Screw Cap Socket He by B And B Specialties Inc. The National Stock Number assigned to this part is 5305011986507, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BCP50001-217C.