The 4900-6 from Pomona is a panel mount banana jack with blue colour polypenylene sulphide insulator for high temperature applications. This banana Jack mounts into panel where thickness is ranging from 0.063inch (1.6mm) to 0.375inch (9.5mm).
Brass with nickel plated body and 1/4-32 hex nut
Steel with nickel plated 1/4 internal locking washer
Maximum hand held testing of 30VAC/60VDC
Hand free testing in controlled voltage environment is 2500WVDC