BS ISO 3601-2:2016规定了一般工业用A级O型环的外壳（压盖）尺寸 符合ISO 3601-1要求的应用，以及用于 选定的公制尺寸硬件，例如液压缸孔和活塞杆。这些O形圈 适用于一般液压和气动应用，不带或带防挤压环 （备用环）。O形圈（d1和d2）的尺寸、尺寸代码（SC）和公差符合 ISO 3601-1。ISO 3601-1中规定的用于航空航天应用的O形圈的外壳尺寸 附录A中有说明。注1:特殊应用的O形圈外壳尺寸应由双方商定 O形圈制造商和用户。注2:术语“外壳”、“凹槽”和“压盖”可以互换，它们的使用取决于当地情况 方便在ISO 3601的本部分中，仅使用术语“外壳”。交叉引用:ISO 3601-1:2012ISO 3601-4ISO 5598ISO 8015购买本文件时可获得的所有现行修订均包含在购买本文件中。

BS ISO 3601-2:2016 specifies the housing (gland) dimensions for class A O-rings for general industrial applications conforming to ISO 3601-1, as well as housing dimensions for class B O-rings used on selected metric-dimensioned hardware, e.g. fluid power cylinder bores and piston rods. These O-rings are for use in general hydraulic and pneumatic applications without and with anti-extrusion rings (back-up rings). The dimensions of the O-rings (d1 and d2), size codes (SC) and tolerances conform to ISO 3601-1.Housing dimensions for the O-rings intended for aerospace applications that are specified in ISO 3601-1 are addressed in Annex A.NOTE 1 It is expected that O-ring housing dimensions for special applications be agreed upon between the O-ring manufacturer and the user.NOTE 2 The terms "housing", "groove" and "gland" are interchangeable, and their usage is a matter of local convenience. In this part of ISO 3601, the term "housing" is used exclusively.Cross References:ISO 3601-1:2012ISO 3601-4ISO 5598ISO 8015All current amendments available at time of purchase are included with the purchase of this document.