DIXON Dix-Lock N-Series Interchange Male End x Hose Barb Safety-Lock Plug, 1/2"

DIXON Dix-Lock N-Series Interchange Male End x Hose Barb Safety-Lock Plug, 1/2"

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  • Rated pressure for connected Steel Coupler & Steel Plug: 500 PSI (35 bar) Maximum Working and 11,000 PSI (755 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.
  • Steel componentry is plated using ROHS Compliant Trivalent Chrome.
  • Coupling sleeve constructed of cast zinc steel
  • Aluminum lock ring

Compatibility & Interchange Data

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

Safety Notes

  • Operating pressure for couplings utilizing hose barb connections may be dramatically reduced to that of the hose rating and/or hose end connection combination. Consult hose manufacturer's catalog for hose end connection ratings. If in doubt, test under controlled conditions for suitability to application.
  • Dixon cannot assume liability for misapplication of production resulting in equipment down-time, lost production, and/or personal injury including death.
  • 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.


        Part Number N4S4-LS
        Material Steel
        Hose ID 1/2"
        Maximum OD 1.40" (35.6 mm)
        Body Size 1/2"
        Length 4.95" (125.7 mm)
        Temperature Range -40°F to +250°F (-40°C to +121°C)