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Hexagonal malleable iron bushing, dark metal finish, threaded ends

Value Brand

Value Brand 1/2" x 3/8" Hex Bushing FNPT x MNPT Class 150

SKU CH-K27Z-02E6H

Malleable-iron Class 150 hex bushing adapts 1/2" male NPT to 3/8" female NPT

  • Malleable iron construction withstands 150 psi service
  • Straight hex profile allows wrench tightening
  • 1/2" male NPT threads into standard fittings
  • 3/8" female NPT accepts smaller pipe
  • Class 150 rating suits common plumbing systems

1/2" x 3/8" Malleable Iron Hex Bushing

This ZORO SELECT hex bushing connects a 1/2 inch male NPT thread to a 3/8 inch female NPT thread. It is made from malleable iron and rated for Class 150 service. The fitting suits plumbing systems requiring a straight, threaded reduction between those specific pipe sizes.

Threaded reduction for mixed pipe sizes

The male and female NPT threads allow direct installation into existing pipework without welding or flanges. Its straight hex body provides a secure grip for tightening with standard tools. This fitting bridges the 1/2 inch and 3/8 inch nominal sizes within a single component.

Class 150 pressure rating for standard duty

The Class 150 designation indicates the pressure envelope for non-shock, cold water, oil, or gas service. It handles typical residential and light commercial plumbing pressures. Systems operating above this class rating require a higher-rated fitting.

Highlights

  • Malleable iron construction withstands 150 psi service
  • Straight hex profile allows wrench tightening
  • 1/2" male NPT threads into standard fittings
  • 3/8" female NPT accepts smaller pipe
  • Class 150 rating suits common plumbing systems

Specifications

BrandZORO SELECT

Questions about this item

What pressure limit does the Class 150 rating impose under sustained use?

The Class 150 rating indicates the fitting is designed for a maximum working pressure of 150 psi under standard conditions.

Does the malleable iron construction affect heat dissipation during continuous flow?

Malleable iron provides solid thermal mass, but no specific heat-dissipation figures are published for this bushing.

Which thread sealant or tape is required for the 1/2" MNPT and 3/8" FNPT connections?

Standard PTFE thread tape or pipe dope compatible with malleable iron and the conveyed fluid should be used on both tapered threads.

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