Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NAS608C256 8 found under Screw Cap Socket He by National Aerospace Standards. The National Stock Number assigned to this part is 5305009595292, 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 NAS608C256 8.