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 6620-01-438-0415
NSN 6150-01-446-5255
NSN 6320-00-937-5625
NSN 2925-01-376-9236
NSN 2925-00-048-7172
NSN 5910-01-018-0145
NSN 6150-01-347-3615
NSN 5998-01-322-5629
NSN 5975-01-273-8144
NSN 6110-00-028-6904
NSN 5965-01-318-9474
NSN 5965-01-465-4370