Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AY300S18A3 found under Synchro Control Tra by Honeywell Aerospace. The National Stock Number assigned to this part is 5990004380612, 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 AY300S18A3.