Used on 5-036-15-102-002 cooler oil lube board 400 ft wagb u s coast guard vessels. 0.688" hole diameter 20.000" outside diameter 16 bolt hole quantity with a rib in the center circular
Used on w/s: an/sqq-89 surface ship asw combat system; spruance class dd (963); ticonderoga class cg (47); arleigh burke class ddg; olivery perry class ffg. 4.010" overall length 1.000" overall width non-circular