The body is isolated — the center contact does not share a DC path with the shell — which matters when the shield carries a DC bias or you need to break a ground loop through the panel. The connector ships as a three-piece kit: the jack body, a lockwasher, and a hex nut for bulkhead mounting from the front side. The 50 Ohm impedance matches standard coax cable types like RG-58, RG-174, and RG-316 — the same cable groups a bench tech reaches for on test leads and short jumper runs. The 4 GHz ceiling covers the full L-band and most S-band applications; above that the VSWR rises and the bayonet interface becomes the limiting discontinuity.
Panel mount through a bulkhead hole, secured with the included lockwasher and hex nut from the front side — the washer bites into the panel to prevent the nut backing off under vibration. No crimp die needed here — it is a solder-only termination, which gives a clean RF joint but takes more bench time than a crimp BNC.