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Autococker Orings

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    Autococker Orings

    So I have been putting together an Oring kit for my Cockers and other markers and i think i am done i thought that i might help others out and put the information that I used here in case anyone else needs it since it seems that the orings for markers have moved to kits only. If there is something that i missed or that you know of I would love to either add it here or if an admin want to clean this up and sticky it just let me know and I can close this. Some of this information is copy pasted from Reddit r/Autocockers101 forum and others is from the Oring store autococker kit. The kit has duplicates of reddit info when they differed on the durameter. The actual kit has most of the orings listed in Reddit i just deleted what was repeated.

    r/Autocockers101
    ---------------------------------------------------------------------------------------------------------------------
    AUTOCOCKER O-RING SIZES

    AS568 SIZE : ID x SC [mm]; DUROMETER

    Old Valve Guide sticking ring: 12.0 x 1.00; 50 or 60

    003 3-Way: 1.42 x 1.52; 40[*]

    006 fill nipple: 2.90 x 1.78; 90

    008 WGP Regulators: 4.47 x 1.78; 55

    010 Ram shaft o-ring: 6.07 x 1.78; 70

    012 Valve o-ring: 9.25 x 1.78; 70

    015 Standard: 14.00 x 1.78; 70 [@] (get lots of these)

    112 Robust: 12.37 x 2.62; 70 [@] (used on regs etc)

    113 Big O-ring: 13.94 x 2.62; 70 (used on some parts)

    Lucky 15 barrel: 21.00 x 1.00; 70

    Info: *: Polyurethane o-rings suggested.

    @: Polyurethane 40-60 o-rings suggested for bolt o-rings.

    OTHERS

    (AS568) SIZE: ID x OD x HT [mm]; DUROMETER

    Eclipse Qev Rubber disc: 3.5 x 7.00 x 0.75; 70

    ANS Cocker Valve disc: 7.0 x 12.0 x 1.50; 90 or 100


    Oring store Kit

    --------------------------------------------------------------------------------------------------------------------------------------------------

    003 B70 Buna-N 70 O-Rings

    006 B70 Buna-N 70 O-Rings

    008 B70 Buna-N 70 O-Rings

    009 B70 Buna-N 70 O-Rings

    013 B70 Buna-N 70 O-Rings

    014 B70 Buna-N 70 O-Rings

    014 S70 FDA Silicone O-Rings

    015 B90 Buna-N Nitrile O-Rings

    017 B70 Buna-N 70 O-Rings

    018 B70 Buna-N 70 O-Rings

    110 B70 Buna-N 70 O-Rings
    Last edited by jokers; 04-14-2022, 02:50 PM. Reason: @batmite put me in my place :D
    My Feedback: https://www.mcarterbrown.com/forum/b...ers-s-feedback

    #2
    Use HBNR instead of standard buna for anything dynamic. Much better abrasion resistance.

    that 003 40d is a little soft for most autocockers. That’s like sub 40psi. There is a neat chart somewhere on the internet with durimeter and psi

    Comment


      #3
      I prefer urethane for anythign that moves, particularly on the 3way. Bunas are too sticky.

      Comment


      • latches109

        latches109

        commented
        Editing a comment
        They offer better abrasion resistance but are prone to swell with water, do not compress as well, and are significantly more expensive.

      #4
      I can't find the ANS valve disk on that site, am I not searching correctly?

      Comment


        #5
        Sorry to be pedantic, but it's durometer not durameter. (skateboarder in the past, wheel hardness you know)

        I know one letter... but....

        Comment


        • jokers

          jokers

          commented
          Editing a comment
          No problem i fixed it, just to make sure there was no confusion later.

        • latches109

          latches109

          commented
          Editing a comment
          how about my "durimeter" typo - obviously I was shooting at the o

        • jokers

          jokers

          commented
          Editing a comment
          I do not know latches109 you need to be careful it seems that batmite is part of the grammar crusade and he might take offense. Lol.
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