What is the replacement mushroom cap for XB4 and XB5 pushbutton operators?

Issue:
Does Square D make mushroom caps for 22mm XB4 or XB5 push buttons?

Product Line:
Push Button Operators

Environment:
Telemecanique XB4/XB5

Resolution:
These are not available as a repair part. Need to replace entire operator.

Released for: Schneider Electric USA