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 5985-01-148-1879
NSN 5999-01-571-8907
NSN 5999-00-263-7874
NSN 6620-00-930-5615
NSN 5835-00-289-9080
NSN 5945-01-364-1178
NSN 5998-00-480-5642
NSN 4140-00-361-4691
NSN 5835-00-408-5499
NSN 5985-01-023-9280
NSN 5835-00-601-1402
NSN 5855-00-058-1293