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 6110-01-442-6665
NSN 6620-01-068-6224
NSN 6150-00-150-8838
NSN 6650-00-578-6543
NSN 4140-01-179-8299
NSN 5985-01-227-7533
NSN 6150-01-605-0959
NSN 2925-00-536-4574
NSN 5915-00-444-5125
NSN 5935-00-652-9380
NSN 5999-01-399-4113
NSN 6650-01-098-2365