This is a A-RC40X50IMP 40 Roller Chain, 50ft (Import) PN: RC40X50IMPMain Description As Following : A-RC40X50IMP 40 Roller Chain, 50ft (Import) P.N: RC40X50IMP Links Per 10 Feet: 240Pitch Length: 1/2"Width: 5/16" Replaces: SWC40X50 JOHN DEERE , Crossed From: C30-3115 , , 3016-5040 , , 40RCX50 , 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 : Links Per 10 Feet: 240 Pitch Length: 1/2" Width: 5/16"