This N jack is bulkhead type and has sealing O-ring. The N bulkhead jack type is with washer and nut to mount this N connector on panel sheet. The sealing O-ring can resist dust or moisture from outside.
N straight bulkhead jack cable connector is nickel plating and popular with 50 ohm. This N jack bulkhead w/O-ring can be soldered with 1.37mm, 1.48mm cable, but also can be soldered with 1.13mm, 1.32mm, 1.32DS or RG178 coaxial cable to be N cable/ N pigtail.
Please link N connector jack bulkhead w/O-ring for 1.13mm, RG178, 0.8mm coax cable to get details and drawing of C28CEWS178002 for 1.37mm, 1.48mm cable.
