Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 23H0021-7 found under Seat Assembly Valve by Computer Machining Technology Co. The National Stock Number assigned to this part is 4810009044736, 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 23H0021-7.