Used on steam turbine,ships propulsion system. 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,
F1 bearing 8.937 in. id by 9.687 in. od by 9 in. o/a lg; 1 bearing 4.937 in. id by 5.750 in. od by 2.500 in. o/a lg; 7 pressed fiber packings 2.500 in. od by 2 in. id; not casehardened; brass material