Used on c-141 acft. 3b thread class right-hand 4.1850" overall length 0.5300" bore diameter 12 thread quantity per inch single row, ball unf thread series
1.5622" bore diameter inergral shields are formed by extending lands od the outer ring, outer ring fractured at one point 2 cres retaining rings on od of outer ring, undersize balls separate load carrying balls single row, external self aligning, w/aligning ring