American Plumber Threaded Cone Washer Kit - 5977

American Plumber Threaded Cone Washer Kit - 5977

Restore a watertight threaded plumbing seal with this universal/spec-match American Plumber Threaded Cone Washer Kit. This part forms the compression/sealing interface used with the specified threaded plumbing connection.

5977 is a universal/spec-match American Plumber item selected by its verified size, rating, connection, or application rather than appearance alone. Match the service requirements before ordering.

Is it time to replace?

• Common Symptoms: Connection seeps or leaks, old washer is hardened/deformed, or the fitting was disassembled and requires a fresh seal.
• Visible/Sensory Cues: Flattened, cracked, hardened, torn, or distorted washer; mineral buildup or leakage around the joint.

Pro Tip: Match washer size/profile and mating fitting exactly, clean sealing surfaces, and avoid overtightening after the seal seats.

Technical Specifications