Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 39Q15 found under Knob by Bay City Shovels Inc. The National Stock Number assigned to this part is 5355003741703, 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 39Q15.