Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1 2DIA-B found under Switch Centrifugal by R Cushman And Associatesinc. The National Stock Number assigned to this part is 5930015411935, 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 1 2DIA-B.