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White PVC Schedule 40 male adapter, 3 inch spigot to MNPT, smooth cylindrical fitting

Mueller Industries, Inc.

Mueller Industries, Inc. 06366 PVC Male Adapter MNPT x Spigot 3 in Schedule 40

SKU CH-F20N-HKHQ6 MPN 06366

PVC Schedule 40 male adapter connects 3-inch spigot to NPT threads for gravity-flow drainage systems

  • TypeDrain Components
  • Schedule 40 PVC handles gravity-flow drainage reliably
  • Male NPT threads connect to standard 3 in fittings
  • Spigot end fits 3 1/2 in pipe outside diameter
  • Operates from -20 °F to 140 °F for varied conditions
  • White finish identifies PVC material at a glance

PVC Male Adapter for 3 Inch Schedule 40 Pipe

This white PVC male adapter connects a 3 inch Schedule 40 spigot to a 3 inch male NPT thread. It is manufactured by Mueller Industries and supplied new as model 06366. The fitting is rated for gravity flow service only.

Temperature Range and Pressure Rating

The adapter handles fluid temperatures from minus 20 degrees to 140 degrees Fahrenheit under gravity flow conditions. It carries no seal in the box, so the installer must supply thread sealant or tape. The overall length is approximately 3 and 1/16 inches.

Suits Gravity Drain Lines Not Pressurised Systems

Plumbers and DIYers joining Schedule 40 PVC drain pipe to threaded metal or plastic fittings will find this part direct and code compliant. It is not designed for pressurised water supply, compressed air or hot water circulation loops. Buyers needing pressure rated joints or solvent weld sockets should select a different fitting type.

Highlights

  • Schedule 40 PVC handles gravity-flow drainage reliably
  • Male NPT threads connect to standard 3 in fittings
  • Spigot end fits 3 1/2 in pipe outside diameter
  • Operates from -20 °F to 140 °F for varied conditions
  • White finish identifies PVC material at a glance

Specifications

TypeDrain Components
BrandMueller Industries
Model06366

Questions about this item

Does the 3 in Schedule 40 PVC male adapter require periodic seal replacement?

The adapter ships without an included seal, so any required sealing method must be supplied separately and inspected during routine system checks.

What pressure limit governs continuous gravity-flow service?

The fitting is rated for gravity-flow maximum operating pressure only; it is not rated for pressurised applications.

How does the material handle constant exposure to 140 degrees F water?

PVC Schedule 40 is rated for continuous service up to 140 degrees F; sustained temperatures above that range risk softening and deformation.

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