A homogenous spherical body, a series of which provides the rolling elements in a bearing, ball (as modified). The item is designed primarily to alleviate friction. It may have other usages such as the checking component in a ball-type check valve. Excludes:ball,check; ball,valve,ported.
c-5 aircraft end item identification, balls, bearing, grade 10, aircraft-quality steel part name assigned by controlling agency, 0.1555 inches nominal rolling element diameter, steel comp m50 overall material, ams 6491 assn std single material response overall material document and classification