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 5925-01-434-6212
NSN 5915-01-063-7007
NSN 6645-00-720-3953
NSN 6145-01-468-6252
NSN 6135-01-419-2794
NSN 5835-00-289-9080
NSN 6220-01-504-3610
NSN 6150-00-316-3223
NSN 5935-01-274-6605
NSN 5915-00-546-0870
NSN 2925-01-133-8128
NSN 5999-01-204-0035