Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B43 333 found under Screw Cap Socket He by Bf Goodrich Aerospace. The National Stock Number assigned to this part is 5305002078085, 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 B43 333.