Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 87M540201-0002 found under Ball And Screw Assy by Electric Boat Corporation. The National Stock Number assigned to this part is 5305015718946, 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 87M540201-0002.