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 2925-01-503-4386
NSN 5920-00-876-3312
NSN 5930-00-927-7716
NSN 5985-01-433-2400
NSN 6105-00-911-1581
NSN 6150-01-294-2471
NSN 6220-01-586-0982
NSN 6620-00-593-5313
NSN 6105-01-557-1219
NSN 4140-00-163-6200
NSN 5985-00-267-1037
NSN 6620-00-988-9170