D5F & D5FB Female receptacle for panel or chassis mounting. Flange has two .136-inch (3.45 mm) diameter countersunk holes for #5-40 flat head mounting screws (not supplied). Mounts from front of panel or chassis in .953-inch (24.21 mm) diameter hole. Series D5F has standard latchlock. The D5F has a Satin Nickel Finish and the D5FB has Silver Contacts with a Black-Velvet Finish. D5M Male receptacle for panel or chassis mounting. Special rectangular flange permits close spacing on crowded panels, has two .136 inch (3.45mm) diameter countersunk holes for #5-40 flat head mounting screws (not supplied). Mounts from front of panel or chassis in .766 inch (19.45) diameter hole. The D5M has a Satin Nickel Finish.