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.
item is part of a synchronized actuator jackscrew assembly,which is used on c-5 acft; ref t.o. 9h2-4-184-3 special features