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 5905-00-784-4235
NSN 5999-01-567-7266
NSN 5990-01-485-0260
NSN 6685-01-376-7428
NSN 6645-00-119-6221
NSN 6130-01-195-6510
NSN 6150-00-299-6678
NSN 5920-00-660-6768
NSN 5965-01-559-1898
NSN 5930-00-057-9105
NSN 6320-01-246-4390
NSN 5935-01-149-2540