Cover and chain assemblies covered by this specification are intended for use with the connector types covered by Specifications MIL-C-12520/3A "Connectors, Plug, Electrical, Waterproof (Cathedral Shape, Shell Size 26, Female Inserts)"; MIL-C-12520/8A"Connectors, Receptacle, Electrical, Waterproof (Shell Size 20, Male Inserts)"; MIL-C-12520/9A"Connectors, Receptacle, Electrical, Waterproof (Shell Size 20, Female Inserts)"; and MIL-C-12520/11A"Connectors, Receptacle, Electrical, Waterproof (Shell Size 26, Female Inserts)".

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