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B Series JG Condensed Straight Plug
The JG is a special condensed version straight B Series plug that is only available in shell size 0. It is 4 mm shorter in overall length than the standard FG style straight plug.
The characteristic feature of the LEMO B series is the keying system, so it’s important to understand and properly specify the proper key for your application. The 3rd position of the part number defines the keying position, for example, FGG is the standard single key version. Many other keyed versions are available per the diagram below: