Special Features:

Two sets of extneral keys unequally spaced, first externa key 30 degrees from internal key and second external key 60 degrees from internal key with opposite set of external kay 180 degrees apart

Properties:

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes thrust type washer.