AO Smith 9004521205 Gas ValveAO Smith 9004521205 is a 24V 1 2" natural gas valve designed for reliable performance in residential gas appliances. This direct gas valve replacement for 192797 ensures smooth ignition, precise flame control, and safer operation across common furnaces, boilers, and water heaters. Built for durability, it stands up to regular heating cycles and demanding schedules. As a trusted natural gas valve and 24V gas valve, it provides accurate control for

this component provides dependable overheat protection for both residential and commercial water heaters

Length: 24 inches

Port connection: 3/4 inch threaded

and a 1/8 to 3/16 inch loading air gap

Specifically used on 046-23A

Temperature and display: setpoint range 45–99°F

a robust FM rating

Maximum pressure drop rating is 150

Exact replacement for Nordyne 626602

a trusted choice for intelligent gas-fired temperature control

it combines compact form with robust North American readiness

MER value 11 supports efficient contaminant capture across common indoor pollutants