Damper assembly

A damper assembly comprising:

• a pressure tube forming a chamber and defining an axis;
• a piston assembly disposed in the chamber and dividing the chamber into two subchambers;
• and
• a piston rod elongated along the axis and fixed to the piston assembly;
• the piston assembly including a body having an inner bore extending axially through the body from a first end to a second end;
• the piston assembly including a blowoff disc contacting the body at the first end of the inner bore and having a throughhole aligned with the inner bore;
• the piston rod extending through and concentrically contacting the inner bore and extending through and concentrically contacting the throughhole;
• one of the body or the piston rod having a groove extending axially along the inner bore from the first end to the second end;
• the body and the piston rod forming a passageway through the groove permitting fluid to travel between the first end and the second end;
• the blowoff disc having a notch extending from the throughhole and arranged to permit fluid from the passageway to pass across the blowoff disc;
• the body having a first side facing axially toward the blowoff disc;
• the first side including a center axial projection extending concentrically around the inner bore and contacting the blowoff disc;
• and
• the notch extending radially outward past an outer diameter of the center axial projection.