COVID-19 Update (November 4th) — While our offices remain closed to the general public, Musson has resumed selected operations in compliance with county guidelines. Non-contact pickup remains available for customers who place their order online, by email, or by phone.
Most of our team continues to work remotely, and many employees are available through their direct extension. In an emergency, please contact us at COVIDemail@example.com or by leaving a voicemail in our general mailbox.
Please note we will be closed from Thursday, November 26th through Sunday, November 29th to celebrate Thanksgiving. We'll re-open at 8:30 am on Monday.
This washer prevents the yoke knob from pressing directly against the yoke itself, also used in ERS fixtures as the washer for the bolt which attaches the fixture to the yoke. Used on just about every conventional ETC lighting fixture. To replace the entire yoke knob set assembly also add the carriage bolt and Yoke Knob Handle (accessories tab) to your cart.