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 7035-01-279-7281
NSN 6135-00-643-4843
NSN 6320-01-302-5157
NSN 5965-01-658-5669
NSN 5935-01-152-8974
NSN 5855-00-198-3197
NSN 6610-00-343-5631
NSN 6220-01-114-4688
NSN 5895-01-353-5604
NSN 5855-01-479-3152
NSN 5999-01-450-9090
NSN 5999-00-681-4876