Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M534B13-22 found under Screw Machine by Cam Fabricated Systems Inc. The National Stock Number assigned to this part is 5305000444181, 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 M534B13-22.