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 6110-01-027-1172
NSN 5920-01-359-5925
NSN 5950-00-683-4429
NSN 5975-01-358-3715
NSN 5998-00-574-6148
NSN 5999-00-807-8104
NSN 5996-01-480-6244
NSN 5855-01-394-7125
NSN 6240-01-494-9202
NSN 5996-00-324-8952
NSN 5930-01-437-9081
NSN 5835-00-707-6266