2.0000" overall length items are being coded as critical to insure source inspection will be performed at the point of manufacture, prior to material receipt by the us navy or other dod components. these items are piece parts or end items in support of vital military hardware necessary to sustain the successful mission of the ships, submarines, 17b segmented, plain, no outside flanges
3a thread class right-hand 3.0995" overall length 0.2500" bore diameter 18 thread quantity per inch shank end chamfered, slotted shank w/two NAS516-1 lubrication fittings cadmium all external/exposed metal surfaces surface treated single row, concave rollers unf thread series
