Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 222728-003 found under Knob by Bae Systems Information And Electronic Systems Integration I. The National Stock Number assigned to this part is 5355000577794, 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 222728-003.