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I know there is a 10 bolt and a 20 bolt combat rim for the 5 ton. I believe the 20 bolt uses a big triangular ring. The 10 bolt uses about a 5/16" round o-ring. What uses a smaller; maybe 3/16 or 1/4" round o-ring? I am sorting through a box of o-rings and am stumped to what they are for. ![Question :?: :?:](https://www.steelsoldiers.com/images/smilies/icon_question.gif)
![Question :?: :?:](https://www.steelsoldiers.com/images/smilies/icon_question.gif)