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.
0.1552 inches nominal rolling element diameter, ball diameter:0.155250 special features, steel overall material, b-52 bomber aircraft,ball bearing screw assembly wing flap drive,parts numbers:7900831/7900832 end item identification, bearing ball;outboard part name assigned by controlling agency