This is a A-CA620C CA620-C Connector Link PN: CA620CMain Description As Following : A-CA620C CA620-C Connector Link P.N: CA620C A-CA620C CA620-C Connector Link P.N: CA620C Crossed From: 2221-31021 JOHN DAY Found in Section & Models : Chains/ Sprockets/ Pulleys/ Hubs > Roller Chains and Attachment Links, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada