Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 600 1S30- CR 12 found under Switch Rotary by Multi Tech Industries Inc. The National Stock Number assigned to this part is 5930011559880, 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 600 1S30- CR 12.