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 5905-00-102-0327
NSN 5950-00-225-8724
NSN 6620-01-111-9064
NSN 6650-00-522-5795
NSN 6130-01-141-1314
NSN 6650-01-259-8452
NSN 5915-00-816-0673
NSN 6685-01-364-0192
NSN 5998-00-362-6658
NSN 5835-00-958-6231
NSN 5999-00-369-1623
NSN 5990-01-564-6173