Spring washer for the nut to secure the trumpets or air filter on the standard studs on the Weber DCOE and DCO/SP series carburetors.
This product is priced, and sold, as each.
Required quantity per carburettor: 4
This is number 20 in the drawing of the Weber DCOE and Weber DCO/SP carburetors.
This is Weber Part Number: 55525.010, superseded by 99901.138