"n" bulkhead hermetically seadled jack receptacle material: lockwasher - spring steel; contact (inside) - beryllium copper: insulator - polytetrafluoroethylene; gassket - silicone rubber; all other parts - brass
Used on cvn nuclear reactor boundary area; (dwg title) controller, ac, magnetic size 4/3 type 6967ed. pushbutton material: assembly; material spec: mil-dtl-2212