DS EN 2997-007:2006 Aerospace Series - Connectors, Electrical, Circular, Coupled By Threaded Ring, Fire-Resistant Or Non Fire-Resistant, Operating Temperatures -65 Degrees C To 175 Degrees C Continuous, 200 Degrees C Continuous, 260 Degrees C Peak - Part 007: Hermetic Receptacle With Round Flange Attached By Welding Or Brazing - Product Standard Defines the characteristics of hermetic receptacles with round flange attached by welding or brazing in the family of circular electrical connectors coupled by threaded ring.