Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CSK2X5SN found under Screw Special by Olympus America Inc. The National Stock Number assigned to this part is 5305010688888, 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 CSK2X5SN.