This Aerospace Standard establishes the diameter - pitch combinations of ISO metric 60 screw threads recommended for use in the aerospace industry for metric module shaft of bearing retaining screw threads.
This report includes a procedure for typical pulse voltage measurement using the pressurized ball gap, calibration procedure, and a description of the pressurized ball gap.
These specifications contain general information pertaining to the sparking voltage parameter of shunted surface gap spark igniters; test equipment circuitry; bill of materials for test equipment; test equipment operation.