本文件规定了一系列液压缸活塞密封壳体的尺寸和相关公差，以适应往复应用中使用的弹性体通电塑料面密封。 本文件未规定密封件设计的细节，因为密封件的构造方式因制造商而异。密封件和任何相关防挤压部件的设计和材料由温度和压力等条件决定。 本文件仅适用于根据本文件制造的产品的尺寸特征。它不适用于它们的功能特性。

This document specifies the dimensions and associated tolerances for a series of hydraulic cylinder piston seal housings to accommodate elastomer-energized, plastic-faced seals used in reciprocating applications. This document does not stipulate details of seal design, since the manner of construction of seals varies with each manufacturer. The design and material of the seals, and any associated anti-extrusion components, are determined by conditions such as temperature and pressure. This document only applies to the dimensional characteristics of products manufactured in accordance with this document. It does not apply to their functional characteristics.