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 6650-01-544-0366
NSN 2925-00-295-4765
NSN 5915-01-114-1891
NSN 5915-01-397-8525
NSN 4140-01-397-7790
NSN 5960-01-162-2304
NSN 6685-01-359-3944
NSN 5950-01-379-8867
NSN 5950-00-690-9421
NSN 6150-01-047-7157
NSN 5905-00-127-7996
NSN 5835-00-554-0399