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Cam & Groove Reducing Type D Coupler x Female NPT

Cam & Groove Reducing Type D Coupler x Female NPT

Part Number 5040-D-AL
Material 356T6 Aluminum
Seal Buna-N
Female Thread NPT
Female Thread Size 4" (100mm)
Coupler Size 5" (125mm)
Maximum Operating Pressure 75 PSI
Weight Lb 3.2550


  • Designed for use with liquids, consult Dixon for specific recommendations


  • No standard exists for the 5" fittings, and generally does not interchange with other manufacturers.


  • Precision machined to rigid tolerances
  • Stainless pins will not rust or bind, providing great strength and safety
  • Recess holds gasket firmly in place- ensures proper placement


  • Buna-N gasket
  • Produced as a welded fabrication
  • Durable stainless steel cam arm pins

Available Options

  • Other gasket types are available, contact Dixon.

How it works

  • To make a connection, simply slide the adapter into the coupler and with normal hand pressure, press the cam levers down.
  • Uncoupling is as quick and simple as coupling. Just lift the cam arms and remove the adapter.


  • In reducing couplings, the cam and groove end is the first size in the part number.

Safety notes

  • Under no circumstances should cam and groove couplings be used for compressed air or steam service!
  • Pressure rating recommendations are based on the use of mating Dixon fittings at ambient temperature 70°F (21°C) with a standard seal installed. For use at elevated temperature or other unusual operating conditions, consult Dixon.

Repair Kits
Part # Description Includes Item # Qty
500-G-BU 5" Buna Cam & Groove Gasket
300-HR-BR Brass Handle w/Pull Ring for 3" - 5" Cplrs
325-P .325" x 1.500" Solid SS Pin

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