Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 105-5137 found under Pistonvalve by Carter Machinery Co. The National Stock Number assigned to this part is 4810016917855, 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 105-5137.