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 5965-01-164-0561
NSN 5925-00-180-4088
NSN 5855-00-150-1820
NSN 5905-00-183-4189
NSN 5965-00-486-7907
NSN 6220-01-449-4202
NSN 5920-01-536-9253
NSN 5990-01-440-7135
NSN 6150-00-123-2166
NSN 5935-00-935-2310
NSN 6650-01-040-1936
NSN 6110-01-010-4551