Dix-Lock™ N-Series Interchange Male Head x Male Threaded End Plug

Dix-Lock™ N-Series Interchange Male Head x Male Threaded End Plug

Part Number N4M6-SS
Material 316 Stainless Steel
Thread NPTF
Thread Size 3/4"
Maximum OD 1.31" (33.3mm)
Body Size 1/2"
Hex 1-3/16"
Length 3.65" (92.7mm)
Pressure Rating See Product Details
Temperature Range -40°F to +250°F (-40°C to +121°C)


  • Rated pressure for connected 303 Stainless Steel Coupler & 303 Stainless Steel Plug: 500 PSI (35 Bar) Maximum Working and 12,600 PSI (865 Bar) Burst
  • Conforms to MIL-C-3486 and A-A-50431A standards


  • Machined components are manufactured using solid bar stock.
  • Stainless steel retaining ring and spring maximize corrosion resistance and extend service life.
  • Coupling sleeve constructed of cast zinc steel

Available Options

  • 316 stainless steel available in some versions upon request, contact Dixon

Compatibility & Interchange Data

  • Bowes Interchange Bayonet Style
  • Interchangeable with Bowes 51000-Series, National Series 'B', MacDonald Quick-Action, Campbell Single-Lock

Safety notes

  • It is important to be safe when installing quick disconnect couplings into a pneumatic circuit. Never install a pneumatic coupling directly into an air tool, use a piece of hose that is at least 18" long, between the tool and the coupling, to prevent damage to the coupling. To protect the operator, safety devices, such as a safety check valve and safety cable should be installed in case there is a hose or coupling failure.


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