本规范涵盖模制环形式的氟硅橡胶（FVMQ）。该产品通常在燃料中使用-67至+347mDF（-55至+175mDC），在润滑油中使用-67至+302mDF（-55至+150mDC）。本产品不建议用于大多数合成涡轮润滑剂，尤其是高温稳定型。“HTS”，发动机机油（符合MIL-PRF-23699 HTS级、MIL-PRF-7808 4级和AS5780 HPC级的机油）。此类环的横截面直径或厚度通常不超过0.275英寸（6.98毫米），但用途不限于此类应用。

This specification covers a fluorosilicone (FVMQ) rubber in the form of molded rings.This product has been typicallyused -67 to +347 \mDF (-55 to +175 \mDC) in fuels and from -67 to +302 \mDF (-55 to +150 \mDC) in lubricating oils. This product is not recommended for use in most synthetic turbine lubricants, particularly high temperature stabilized. "HTS", engine oils (those confirming to MIL-PRF-23699 Class HTS, MIL-PRF-7808 Grade 4 and AS5780 Class HPC). The cross-section of such rings is usually not over 0.275 inch (6.98 mm) in diameter or thickness, but usage is not limited to such applications.