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 5975-01-023-6897
NSN 5855-01-258-6180
NSN 5905-01-026-0516
NSN 6150-01-175-9352
NSN 5910-01-501-9988
NSN 6145-00-399-5201
NSN 5925-01-429-7699
NSN 5835-01-546-2008
NSN 2925-01-554-1474
NSN 6320-01-229-2264
NSN 5990-00-506-8315
NSN 6610-01-202-7404