Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E3 150 15 found under Knob by Southco Inc. The National Stock Number assigned to this part is 5355016542262, 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 E3 150 15.