Lock washer ext tooth no.4 brz/ni; item 65 t.T.O. 15a3-4-1-4; 2000.3.30; 2-2007.02.20 page 2-4; figure 1 page 2-2
No other part numbers with same form, fit, and function found.
A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces
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