Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R63870C11E8404 found under Switch Pressure by Unifab Industries Inc. The National Stock Number assigned to this part is 5930002757800, 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 R63870C11E8404.