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Brass hex nipple with female NPT and male NST threads

Value Brand

Value Brand Hex Nipple FNPT x MNST 1 in x 1-1/2 in Brass

SKU CH-203D-7MZA6

A brass hex nipple joins a 1 in female NPT thread to a 1-1/2 in male NST thread for fire hose connections

  • Hex nipple joins 1 in FNPT to 1-1/2 in MNST threads
  • Brass construction resists corrosion in water and fire lines
  • Straight rigid design keeps flow path clear and aligned
  • Female NPT and male NST ends fit standard hydrant gear
  • Prop 65 notice included for California compliance

Brass Hex Nipple for Fire Hose Connections

This brass hex nipple connects a 1-inch female NPT thread to a 1-1/2-inch male NST thread. It provides a straight rigid adapter for joining fire hose equipment to standard pipe fittings. The all-brass construction suits water supply and fire protection installations.

Suits installers joining NPT pipe to NST fire hose

Users needing a different thread combination or a swivel connection will not find that function here. Builders requiring a reducing coupling with alternative end types should select another fitting.

California Proposition 65 chemical warning applies

This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. The warning is required for sale in California.

Highlights

  • Hex nipple joins 1 in FNPT to 1-1/2 in MNST threads
  • Brass construction resists corrosion in water and fire lines
  • Straight rigid design keeps flow path clear and aligned
  • Female NPT and male NST ends fit standard hydrant gear
  • Prop 65 notice included for California compliance

Specifications

BrandZORO SELECT

Questions about this item

Should I choose this 1 in FNPT by 1-1/2 in MNST hex nipple or a different size combination?

Select this fitting when you need to join a 1 in female NPT thread to a 1-1/2 in male NST thread; other size combinations will not match those specific pipe and hose threads.

What does the Proposition 65 notice mean once the brass nipple is installed in my plumbing system?

The warning indicates the brass alloy contains a listed chemical; the fitting remains legal to install, but wash hands after handling and avoid using it in potable-water lines if local codes prohibit it.

How do the FNPT and NST thread standards affect what this adapter can connect in practice?

FNPT provides a tapered pipe seal on the 1 in side while NST gives a straight fire-hose thread on the 1-1/2 in side, so the nipple only joins components cut to those exact thread forms.

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