This is a A-E59303 Nut, Wobble Box Shaft PN: E59303Main Description As Following : A-E59303 Nut, Wobble Box Shaft P.N: E59303 Inside Diameter: 2.09"Outside Diameter: 2.56" HexThickness: .40"Thread: 1 15/16"- 20 UN RH Crossed From: AME59303 , , E40317 JOHN DEERE Found in Section & Models : Headers/Platforms/Feeder House > Grain Head Parts, John Deere COMBINE: 6620, John Deere COMBINE: 6621, John Deere COMBINE: 6622 (SN 507051>), John Deere COMBINE: 7700, John Deere COMBINE: 7701, John Deere COMBINE: 7720, John Deere COMBINE: 7721, John Deere COMBINE: 8820, John Deere COMBINE: 9400, John Deere COMBINE: 9410, John Deere COMBINE: 9450, John Deere COMBINE: 9500, John Deere COMBINE: 9500SH, John Deere COMBINE: 9501, John Deere COMBINE: 9510, John Deere COMBINE: 9510SH, John Deere COMBINE: 9550, John Deere COMBINE: 9550SH, John Deere COMBINE: 9560, John Deere COMBINE: 9560CTS Associated Items : New Also A-JD-O-OMH111330, A-JD-O-OMH120048, A-JD-O-OMH111330, A-JD-O-OMH120048, A-JD-O-OMH111330, A-JD-O-OMH120048 And : Inside Diameter: 2.09" Outside Diameter: 2.56" Hex Thickness: .40" Thread: 1 15/16"- 20 UN RH