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 6620-01-104-5758
NSN 4140-01-592-4133
NSN 5925-00-957-9894
NSN 6685-00-734-0131
NSN 5925-00-810-0525
NSN 4140-01-343-0501
NSN 5990-00-111-3614
NSN 6650-01-277-1858
NSN 5975-01-172-0435
NSN 5905-01-418-8476
NSN 5965-00-995-2075
NSN 5999-00-438-5072