The 222117-1: It is a straight, panel-mount bulkhead adapter with a bayonet lock on each side. The center contacts are female-to-female, gold-plated beryllium copper, and the body is finished in nickel. The dielectric is polymethylpentene (PMP).
Impedance — Why 75 Ohm Matters for Your System
This adapter is rated for 75 Ohm systems. It is not compatible with 50 Ohm BNC infrastructure — using a 75 Ohm component in a 50 Ohm path creates an impedance mismatch that degrades return loss and signal integrity, especially above a few tens of MHz. Stick with 75 Ohm cable and equipment for video, broadcast, or legacy telecom paths.
Obsolete — Sourcing Reality for 222117-1
No official replacement part number is listed on the lifecycle record.
Mounting and Termination Notes
Panel mount with a bulkhead feature — the adapter passes through the panel and is secured with the included lockwasher and nut. No soldering or crimping required at the adapter itself; it is a pass-through junction between two BNC male-terminated cables or bulkhead feeds. The bayonet lock on each end provides quick mate and secure retention under moderate vibration.