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 5998-01-084-4644
NSN 5905-00-157-2197
NSN 6610-00-531-5387
NSN 5895-01-560-8210
NSN 6650-00-349-8732
NSN 6150-01-153-1186
NSN 6110-01-523-2699
NSN 7035-00-870-0290
NSN 6685-00-777-9565
NSN 6650-01-124-4314
NSN 5999-00-782-7919
NSN 6645-00-100-4931