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.
used on scorpion electronic monitor remote programmable firefighters water aiming device end item identification, steel corrosion resisting overall material, 0.250 in dia special features