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 5920-00-152-4003
NSN 5925-01-004-5277
NSN 5910-01-144-2233
NSN 5945-00-272-8958
NSN 5935-00-866-9765
NSN 5925-00-126-6660
NSN 5855-01-138-4985
NSN 5998-01-264-9932
NSN 6145-00-819-0062
NSN 7035-01-375-3719
NSN 6110-00-463-6158
NSN 5960-00-114-4916