Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS22A306 found under Knob by G E C Marconi Avionics Ltd. The National Stock Number assigned to this part is 5355999644016, 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 SS22A306.