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 6240-01-428-9410
NSN 5996-01-058-6935
NSN 6145-01-512-8688
NSN 5999-00-832-9660
NSN 6620-01-522-5717
NSN 5950-01-570-5389
NSN 5965-01-386-9281
NSN 5915-01-567-1928
NSN 6110-01-476-8067
NSN 5905-01-050-4466
NSN 6105-01-347-3395
NSN 6135-01-525-8196