Style: Type 21E inch/imperial series
Dimensions:
Shaft: 1-3/8" (34.9 mm)
Seat Bore: 50.8 mm
Seat Thickness: 11.1 mm
Working Length: 28.6 mm (As measured from the rotating face to the back of the spring, under normal compression.)
Materials:
Rubber Parts: NBR Rubber
Faces: Standard Ceramic