BS EN 4857-1. Aerospace series. Miniature Connectors, High density, electrical, circular, scoop-proof, triple start threaded coupling, operating temperatures 175 °C continuous or 200 °C continuous. Shell sizes : 05 to 07. Part 001. Technical specification|Testing methods, Electrodes, Melting, Air, Steels, Contrast (optical), Measurement, Aircraft components, Cables (electric), Test methods, Aerospace transport, Corrosion tests, Compression set, Mixing, Tear tests, Elastic constants, Elongation, Tensile strength, Density, Hardness testing, Approval testing, Qualification approval, Quality assurance systems, Quality assurance, Synthetic rubber, Natural rubber, Air transport engineering, Marking, Designations, Aircraft engineering, Temperature, Connectors (electric), Environmental testing, Testing, Durability, Sleeving (electrical), Diameter, Shape, Nickel alloys, Non-ferrous alloys, Alloys, Circuit-breakers