MIL-STD-1554A, DEPARTMENT OF DEFENSE INTERFACE STANDARD: INSERT ARRANGEMENTS FOR MIL-DTL-83723 SERIES III AND MIL-DTL-26500 ENVIRONMENT RESISTING, CIRCULAR, ELECTRICAL CONNECTORS (02 FEB 2009)., This standard covers insert arrangements for use with MIL-DTL-83723 series III and MIL-DTL-26500 environment resisting, circular, electrical connectors.