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The Goodman B1796632 Seal and Nut is a genuine OEM 3/8-inch sealing assembly for ARUF049-00A-1A air handlers. This small but critical part creates a leak-tight joint at refrigerant and tubing connections, preventing refrigerant loss and maintaining system pressure integrity.
OEM seals are manufactured to the precise 3/8" thread pitch and gasket durometer needed for a reliable, reusable refrigerant-grade seal. Generic hardware-store seals may be the wrong material or tolerance, leading to slow leaks that are expensive to diagnose later. The OEM part guarantees a correct, lasting fit.
Seals harden, compress, and lose elasticity over time. They should be replaced any time the fitting is opened for service to ensure a fresh leak-proof connection.
Installation Difficulty: Easy — slides onto the 3/8" tube and tightens with the supplied nut to spec. Replace whenever the joint is disturbed and torque to the manufacturer's value to avoid over-compression.