本推荐规程提供了与以下三通头螺栓系列连接的表面直径的尺寸数据:AS 3232至AS 3235、MS 9397至MS 9402和MS 9432至MS 9437，或具有兼容尺寸的其他零件。

This recommended practice provides the dimensional data for the diameters of surfaces that interface with the following tee head bolt series: AS 3232 thru AS 3235, MS 9397 thru MS 9402 and MS 9432 thru MS 9437, or other parts with compatible dimensions.