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本规范已经海军部海军军械系统司令部批准。 1.范围 1.1 范围。本规范包括普通式和包覆式两和油封,用于海军军械设备上做旋转和往复运动轴的密封。 1.2 分类。按规定油封应是下列的型别、级别和类别(见6.2)。型别—油封的截面形状和结构应符合采购方规定(见6.2)。级别A—低扭矩油封类别1—工作温度-65—150°F 类别2—工作温度-20—200°F 级别B—中扭矩油封类别1—工作温度-65—150°F
This code has been approved by the Naval Armament Department Command. 1. Range 1.1 range. This specification includes both plain and wrap-around oil seals for the sealing of rotating and reciprocating shafts on naval ordnance equipment. 1.2 classification. The seals shall be of the type, class and category below (see 6.2). Type - The cross-sectional shape and construction of the oil seal shall be as specified by the purchaser (see 6.2). Low Torque Seal Type 1 - Operating Temperature -65-150 ° F Category 2 - Operating Temperature -20-200 ° F Grade B - Medium Torque Seal Category 1 - Operating Temperature -65-150 ° F