Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WC1275E4D7AL found under Bolt Shear by West Coast Aerospace Inc. The National Stock Number assigned to this part is 5306016004273, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WC1275E4D7AL.