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Paintball Cylinder Threaded Port Dimensions

  1. Oct 8, 2007 #1
    Does anybody have information on the threaded cylinder port that a paintball pin valve threads into?

    I know it's a 5/8-18UNF-2B thread, but I need to know the dimensions for the o-ring surface of the port.

  2. jcsd
  3. Oct 8, 2007 #2


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    Any pressure cylinder should have a DOT number on the side. Can you find out what it is?

    I take it the o-ring is a face seal?
  4. Oct 8, 2007 #3
    I didn't think the DOT number had anything to do with the thread port. No, I don't have an actual cylinder.

    This is the pin valve:

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