Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D10389R86-C found under Isolator Relay by Versitron Inc. The National Stock Number assigned to this part is 5985012201574, and the Federal Supply Class is 5985 Antennas Waveguides And Related Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D10389R86-C.