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 5905-00-060-4616
NSN 5855-00-012-1958
NSN 7035-01-068-3300
NSN 5920-01-471-5364
NSN 6110-01-068-9241
NSN 6135-00-613-1068
NSN 4140-01-378-6386
NSN 5905-00-482-6453
NSN 6320-01-322-8340
NSN 4140-00-912-1904
NSN 2925-01-328-4394
NSN 5915-00-753-7433