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 5935-00-629-0276
NSN 6130-00-701-3999
NSN 6145-01-256-4568
NSN 6220-00-149-0977
NSN 6650-01-227-4976
NSN 5935-01-468-5608
NSN 5999-01-264-5181
NSN 6685-01-324-5972
NSN 7035-00-679-9027
NSN 6240-01-209-6639
NSN 6145-01-437-5000
NSN 6150-00-518-2743