Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N9-508-001 found under Knob by Kikusui Intl Corp. The National Stock Number assigned to this part is 5355012201661, and the Federal Supply Class is 5355 Knobs And Pointers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like N9-508-001.