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 6650-01-100-9964
NSN 5985-00-780-7421
NSN 6685-00-218-1229
NSN 6620-01-468-3826
NSN 6220-00-184-6179
NSN 5915-01-053-6529
NSN 5998-01-306-4788
NSN 6105-01-407-4222
NSN 5920-01-199-2931
NSN 5935-01-165-1114
NSN 6685-01-605-8523
NSN 6135-01-342-3859