BS EN 6123:2016规定了装配端的尺寸、公差和所需特性， 24°锥，外螺纹，无扩口型，尺寸-04至-20，用于5080 psi的液压和流体系统，直径1/4英寸≤ D≤ 1 1/4英寸（6.35毫米≤ D≤ 31.75毫米）。这是一个设计标准。此接头端不能用于插入式管接头。交叉引用:ISO 3161购买时可用的所有当前修订均包含在本文件的购买中。

BS EN 6123:2016 specifies the dimensions, tolerances and the required characteristics of a fitting end, 24° cone, external thread, flareless type, size -04 up to -20 for use in hydraulic and fluid systems at 5,080 psi, diameter 1/4 inch ≤ D ≤ 1 1/4 inch (6,35 mm ≤ D ≤ 31,75 mm) for aerospace applications.This is a design standard.This fitting end cannot be used for plug in union.Cross References:ISO 3161All current amendments available at time of purchase are included with the purchase of this document.