Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R16254 found under Valve Regulator Flo by Manitou North America Inc. The National Stock Number assigned to this part is 4810012705710, 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 R16254.