A compact, robust, quick release connector, (often referred to as 602 pattern) style connectors are found in many aircraft produced from the mid/late 1960's onward.
Produced by numeraous maufacturers, there are slight variations in design, but all should be cross-compatible as the contact layouts and keyway configurations are defined by specifications.
General Specification:
MIL-DTL-26482H, Ammendment 2, 20 Feb. 2007
MIL-DTL-26482H, Supplement 1, 14 Aug. 2007
MIL-DTL-26482H, Supplement 1A, 07 Dec. 2009