Used on 2320-01-495-0110. 10.0mm hole diameter 18.0mm outside diameter 2.0mm material thickness type fbb normal series spring washer zinc surface treated split helical-right hand
Used on sea lift cp propeller system arrangement t-akrm 300 class. 2b thread class 8 thread quantity per inch outside dia is 19.000 in nomimal; nut thickness is 4.250 in, ; inside dia is 10.5 in