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 5935-01-420-6452
NSN 6105-01-137-3162
NSN 6320-00-310-1080
NSN 6240-01-073-6471
NSN 5990-01-199-2846
NSN 4140-00-498-6867
NSN 5990-01-270-3209
NSN 6620-00-003-2020
NSN 5960-01-267-6139
NSN 6110-01-263-2271
NSN 5945-01-411-6180
NSN 5905-01-144-2174