Genuine Ramset part number 800-40-45, Washer, Flat - ID 3/4" : OD 1 1/4". This is the factory replacement component used in the Ramset RAM 1000, RAM 5500 slide gate operators.
Fits: Ramset RAM 1000, RAM 5500. Check the reference number against the parts diagram on the model page before ordering — several Ramset operators use similar looking parts in different sizes.
Sold individually unless the description states otherwise. Call us with your operator model and serial number if you are unsure.