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 5920-01-125-4356
NSN 6645-01-585-2264
NSN 2925-01-362-2515
NSN 5905-01-410-2933
NSN 5960-01-026-9005
NSN 5905-01-104-5137
NSN 2925-00-146-0179
NSN 5990-01-147-5225
NSN 5855-01-392-1110
NSN 6110-01-238-8421
NSN 5990-01-148-0435
NSN 5990-01-419-0661