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 5996-00-905-6610
NSN 5835-01-514-5758
NSN 5855-01-426-5589
NSN 6620-00-111-4506
NSN 5835-00-967-0998
NSN 6150-01-142-0229
NSN 6145-00-337-3188
NSN 6220-01-104-0095
NSN 6150-01-314-1514
NSN 4140-01-313-3733
NSN 6220-00-186-0177
NSN 5920-01-550-9545