Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KS 2-56X3 8LONG found under Screw Externally Re by A P M Hexseal Corporation. The National Stock Number assigned to this part is 5305011707752, 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 KS 2-56X3 8LONG.