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 5925-01-281-2193
NSN 6145-00-237-8141
NSN 6105-01-351-5998
NSN 6220-00-696-1519
NSN 5960-01-157-2641
NSN 6130-01-164-7348
NSN 6110-01-500-2240
NSN 5945-00-084-1163
NSN 5965-01-340-3723
NSN 6610-01-514-7755
NSN 5925-00-204-9759
NSN 2925-01-139-5144