Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U28-5185REV4G1 found under Switch Rotary by Raytheon Technical Services Company. The National Stock Number assigned to this part is 5930005486220, 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 U28-5185REV4G1.