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.
tm 3-1040-282-10/-20/-30 & -23p reference data and literature, steel corrosion resisting overall material, 1040-01-380-1400 end item identification