Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S8401PA8-12 found under Screw Machine by B E Aerospace Inc. The National Stock Number assigned to this part is 5305011939450, 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 S8401PA8-12.