TE Connectivity 50 Ohm MIL Spec RF coaxial BNC Bulkhead Jacks 50 Ohm MIL Spec RF coaxial BNC bulkhead jacks with bayonet locking and O crimp terminations to provide insulation grip and eliminate the need for soldering. These 50 Ohm MIL Spec RF coax BNC bulkhead jacks have a nickel plated body with a TEFLON dielectric , gold plated centre contact and are suitable for use with a variety of RF coaxial cables. Supplied with a jam nut, lock washer and gasket.