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 6620-00-902-3688
NSN 6645-01-069-1326
NSN 6610-01-641-6736
NSN 5996-01-426-8531
NSN 6610-00-987-9716
NSN 5905-01-479-2230
NSN 6220-01-151-4240
NSN 6240-00-172-8451
NSN 6145-00-182-9797
NSN 5905-00-401-5030
NSN 5999-01-261-2266
NSN 6110-00-171-2214