Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R5A3030U found under Switch Rotary by Drs Power And Control Technologies. The National Stock Number assigned to this part is 5930016208038, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R5A3030U.