Counterbore ID
Counterbore ID
The inside diameter of the counterbore of the flange. This should match the outside diameter of the tube size material that will be welded to the flange.
3.023" (76.8mm)
Flange ID
Flange ID
The inside diameter of the flange.
2.866" (72.8mm)
Overall Flange OD
Overall Flange OD
The overall diameter of the flange — measured across the widest part of the seating surface of the flange.
3.551" (90.2mm)