What is the part number for the wavy washer? March 20, 2026 18:13 Updated QuestionWhat is the part number for the wavy washer?AnswerThe part number is B34115Applies to1E and 45H Related to 45H 1E wavy washer Related articles Can the "D" roses be ordered only for the 9K? What knobs / roses are available to order separate on the 6K? How to Order: 45H Visual Indicator Thumb-Turn Kit