Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A-RH-040001-01 found under Cap Valve Assembly by The Hymatic Enginnering Company. The National Stock Number assigned to this part is 1680011786274, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A-RH-040001-01.