Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NAS120R125 found under Knob by Plastic And Metal Products. The National Stock Number assigned to this part is 5355006684899, 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 NAS120R125.