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 6150-01-101-9570
NSN 5930-01-642-2929
NSN 5945-01-347-3382
NSN 6240-00-170-5302
NSN 6620-00-787-6683
NSN 5935-00-849-7763
NSN 5990-01-370-7912
NSN 5895-00-306-9882
NSN 6130-00-905-7182
NSN 5945-01-597-1734
NSN 2925-01-041-8201
NSN 6220-01-142-3148