connector cap,This is the Y2 series receptacle cap, circular connector cap,water proof cap,rain proof cap,water tight cap. connector cap,These are Y2M/Y2/YP/LYP series rain proof caps.It can be used on MIL-C-26482 series also.Male receptacle or female receptacle cap.These caps can have a plastic chain.These cap can be used on Y11,Y50E series connectors also. connector cap