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.
material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications reference number differentiating characteristics, steel overall material, afbma std tolerance for balls, grade 25 standard tolerance designation, zzzy criticality code justification, 0.2500 inches nominal rolling element diameter