Used on steam turbine. 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,
Used on aircraft model sh-60b,gas turbine engine. components include two cylindrical sleeves approximately 0.587 in. lg., with very close slip fit dia. of seal rotor at turbine end of rotating group
