| Commutator lock nut, fine thread with nylon jamAdditional Information Commutator lock nut, fine thread with nylon jam, used on 2 piece timers from 1909-1911 self-locking nut that will not work loose like standard nut. Questions and Answers There are currently no questions for this item. To ask a question about this item please press and fill out the form. Customers Who Bought This Item Also Bought | |