该标准规定了具有屏蔽环的可拆卸插头的特性，类型2，外壳尺寸25，配有阳触头，在圆形，电连接器系列中，具有三重启动螺纹联接。 它适用于表2中的模型。 有关插座和保护盖，请分别参见EN 3645-003，EN 3645-004，ZH 3645-005，ZH 3645-007，ZH 3645-009和EN 3645-010。 对于与此插头相关的触点，密封塞和后部附件，请参见EN 3645-002。 这些连接器从规范MIL-DTL 38999/31中的型号W获得并可互换

This standard specifies the characteristics of releasable plugs with shielding rings, type 2, shell size 25 equipped with male contacts, in the family of circular, electrical connectors, with triple start threaded coupling. It applies to model in Table 2. For receptacles and protective covers, see EN 3645-003, EN 3645-004, EN 3645-005, EN 3645-007, EN 3645-009 and EN 3645-010 respectively. For contacts, sealing plugs and rear accessories associated with this plug, see EN 3645-002. These connectors are derived from and interchangeable with model W in specification MIL-DTL 38999/31.