Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R431007320 found under Repair Kitvalve by Aventics Ltd. The National Stock Number assigned to this part is 4810016812939, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R431007320.