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Thread: Bendix o-rings

  1. #1
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    MK15.5, MK15

    Bendix o-rings

    Does anyone know the sizes of the o-rings that seal the 6-pin and 13-pin Bendix sockets into the pod on a MK15? For clarity, I don't mean the o-rings that seal the cables into the sockets. I've looked in the Navy manual and at the various o-ring size compilations in the forums here but can't find these particular o-rings.

    Thanks,
    Lee

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    Re: Bendix o-rings

    Quote Originally Posted by deepwrecksc  View Original Post
    Does anyone know the sizes of the o-rings that seal the 6-pin and 13-pin Bendix sockets into the pod on a MK15? For clarity, I don't mean the o-rings that seal the cables into the sockets. I've looked in the Navy manual and at the various o-ring size compilations in the forums here but can't find these particular o-rings.

    Thanks,
    Lee
    2-013's work for us.

    Make sure the chamfer is clean, and lube it up good - typically, this o-ring is rarely (if ever) serviced, so once you put it in, the bugger stays there forever.

    Kevin.

    Edit: I'm not sure offhand what the 13 pin size is - I'm not in the shop at the moment, but I can find out for you shortly.

  3. #3
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    Re: Bendix o-rings

    Quote Originally Posted by heyydude  View Original Post
    2-013's work for us.

    Make sure the chamfer is clean, and lube it up good - typically, this o-ring is rarely (if ever) serviced, so once you put it in, the bugger stays there forever.

    Kevin.

    Edit: I'm not sure offhand what the 13 pin size is - I'm not in the shop at the moment, but I can find out for you shortly.
    Cool - thanks Kevin! I thought that 013 might have been the right size but wanted to make sure. The original ones that I removed were clearly ready to be replaced. They had a triangular cross section after being in there for 30 years! Made it tough to dimension them with a caliper.

    If you could find the specs on the 13-pin size, I'll be very grateful.

    As a side note - I don't think I'll ever want to de-pot one of these pods ever again. What a pain and what a mess!

    Lee

  4. #4
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    Re: Bendix o-rings

    After doing a little research, the Bendix sockets used on the MK15 pod are SAE/MS o-ring boss fittings. The 6-pin socket is 9/16-18 UNF and the 13-pin socket is 3/4-16 UNF. The specified o-rings are indeed AS568a standard, but they aren't in the typical 2- series. The correct sizes are 3-906 for the 6-pin sockets, and 3-908 for the 13-pin sockets. These are known as boss o-rings.

    Just thought I'd share in case the information is useful to anyone in the future.
    Lee

  5. #5
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    Re: Bendix o-rings

    Bonus Lee, I'll be adding this bit-o-data to my files. Thanks for the research and post!

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