Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 615B611-000 found under Knob by Colorado Video Inc. The National Stock Number assigned to this part is 5355010446613, 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 615B611-000.