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 5895-00-153-9445
NSN 4140-00-500-2718
NSN 5915-01-515-2278
NSN 6610-01-461-8180
NSN 6610-01-579-2984
NSN 6685-01-200-7401
NSN 6110-01-463-9010
NSN 5996-00-166-0037
NSN 5998-01-346-4034
NSN 5925-01-425-4332
NSN 5835-01-180-1400
NSN 5985-00-970-9100