An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.
Classification: Thrust ball bearings
NSN 5835-01-386-4027
NSN 5920-00-838-0302
NSN 6620-01-388-1430
NSN 6320-00-546-9249
NSN 6105-00-434-5622
NSN 6240-00-553-8891
NSN 6130-01-252-2068
NSN 5925-00-706-9975
NSN 6110-01-623-1391
NSN 5960-00-960-6805
NSN 6135-00-294-0950
NSN 5855-01-419-5285