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 5910-00-221-5060
NSN 5999-01-590-8711
NSN 5930-00-449-3517
NSN 7035-01-268-0933
NSN 5935-00-133-0395
NSN 6645-01-536-6111
NSN 6150-01-182-6177
NSN 5935-00-117-9446
NSN 5996-01-094-7025
NSN 5985-00-984-8760
NSN 6110-01-029-3403
NSN 6650-01-250-8701