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Black hex bushing 3-1/2 by 3 inches with threaded ends

Legend Valve

Legend Valve 350-644 black hex bushing 3-1/2 x 3 inch

SKU CH-1YG9-2P1ZE

Black hex bushing connects 3-1/2 inch female NPT to 3 inch male NPT threads

  • New plumbing component ready for installation
  • Legend Valve brand ensures recognised manufacturing quality
  • 3-1/2" x 3" black hex bushing fits standard NPT threads
  • Hex profile allows secure tightening with common tools
  • California Proposition 65 warning advises safe handling practices

Product identity

The Legend Valve 350-644 is a black hex bushing built to join a 3-1/2 inch female NPT opening with a 3 inch male NPT thread. It serves plumbers and maintenance crews who need a durable, code-compliant transition in steel piping systems.

Fit and alternatives

This fitting suits installers working with the exact 3-1/2 by 3 inch NPT size change in black steel. Jobs that require a different diameter step, a stainless or brass body, or a coupling rather than a bushing will need another part.

Deciding specification

The defining detail is the 3-1/2 inch FNPT to 3 inch MNPT thread combination. Confirm that both the pipe and the mating component match these sizes and thread standards before ordering.

How it compares

Measured against everything we stock in Garden Hoses & Pipe Tubing, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 60% of the 973 comparable items (median $21.99).

Specifications

Product
Brand nameLEGEND VALVE

Questions about this item

Will the 350-644 hex bushing thread onto my existing NPT pipes without leaks?

The bushing has FNPT internal threads and MNPT external threads, matching standard NPT pipe sizes for a direct fit.

How can I verify the 350-644 bushing is seated correctly after installation?

Tighten the hex head with a wrench until the joint feels firm and no threads are visible; then pressure-test the line for leaks.

Does the 350-644 package include any sealant or gaskets, or must I buy them separately?

Only the black hex bushing is supplied; thread sealant tape or pipe dope must be purchased separately.

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