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 5985-01-572-6029
NSN 5920-01-377-1410
NSN 5950-01-515-1947
NSN 5935-01-554-4951
NSN 5915-01-333-3263
NSN 6105-01-347-4477
NSN 5960-00-452-0452
NSN 5950-00-251-0678
NSN 5835-01-013-9321
NSN 6610-01-477-6476
NSN 5996-01-093-9259
NSN 5835-01-459-7428