Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 237925 found under Diaphragm Actuator Valve Special by Dart Truck Co. The National Stock Number assigned to this part is 4820006525138, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 237925.