Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2S 5452 3IN ITEM 125 131 137 found under Stem Fluid Valve by Ruggles Klingemann Mfg Co. The National Stock Number assigned to this part is 4810012828555, 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 5452 3IN ITEM 125 131 137.