Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2S-5242 PC8 found under Cylinder Valve by Ruggles Klingemann Mfg Co. The National Stock Number assigned to this part is 4810002556290, 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 2S-5242 PC8.