3a thread class left-hand 1.7800" overall length 0.2495" bore diameter 28 thread quantity per inch NAS513 keyway in shank cadmium exposed surfaces as mounted surface treated single row, concave rollers unjf thread series
3a thread class right-hand 1.7800" overall length 0.2495" bore diameter 28 thread quantity per inch NAS513 keyway in shank cadmium exposed surfaces as mounted surface treated single row, concave rollers unjf thread series
3.8300" overall length 0.3743" bore diameter hollow shank 0.4375 in. dia 2.5000 in. deep chromium locking collar surface treated single row, needle roller