Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 990-3013 found under Knob by A L D Inc. The National Stock Number assigned to this part is 5355013755877, 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 990-3013.