Used on underwater mobile,submarine,radio navigation aids an/brn-3. 2b thread class right-hand 18 thread quantity per inch 16-22 socket contacts in lieu of 16-16 uns thread series
Used on ballistic missle early warning system (bmews), b-1 aircraft support equipment, tf33-pw-102 (c-135e, ec-135h/k/p) aircraft engine.. weapon system essential axial terminal each end