Nordyne 661048R Orifice 320734-701 The Armstrong Fluid Technology 871101-704

The Armstrong Fluid Technology 871101-704 Outboard Ball Bearing is a high-performance replacement pump bearing specifically engineered for Armstrong Series 4030 pumps with "M" style bearing assemblies

ensure the corresponding cartridge is rated for such operation or consult the system piping schematic

a liquid-filled gauge is generally recommended to dampen pointer flutter and reduce internal wear

This part number covers the crankarm only

Is this kit required for high-altitude installations

Nordyne 661048R Orifice 320734-701 The Armstrong Fluid Technology 871101-704The Nordyne 661048R Orifice is a precision engineered #48 (. 048) gas burner component designed for the specialized fuel metering requirements of Nordyne heating systems. As a genuine Nordyne replacement part, it ensures exact gas flow rates necessary for maintaining combustion efficiency and heat exchanger integrity. This item serves as the direct OEM supersession for retired part numbers 661048 and 660541. In a professional HVAC gas furnace