Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 11CDX4B found under Synchro Differentia by Muirhead Aerospace Ltd. The National Stock Number assigned to this part is 5990009243939, and the Federal Supply Class is 5990 Synchros And Resolvers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 11CDX4B.