Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number OK2-SS-7 found under Valve Linear Directional Control by A A A Products Co. The National Stock Number assigned to this part is 4810013565909, 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 OK2-SS-7.