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 6220-00-229-4125
NSN 7035-00-908-4933
NSN 5960-00-133-2475
NSN 6110-01-085-7214
NSN 5835-01-515-6537
NSN 5990-01-118-8624
NSN 6650-01-461-8283
NSN 6620-00-278-7313
NSN 5975-01-649-3479
NSN 5965-01-157-7732
NSN 5895-00-817-7697
NSN 5960-00-016-0372