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 2925-00-714-3932
NSN 6320-01-388-9450
NSN 6685-00-936-9852
NSN 4140-01-495-0793
NSN 6620-01-297-5576
NSN 5925-01-358-0309
NSN 5920-00-901-7436
NSN 6110-01-499-1074
NSN 6110-01-372-9785
NSN 5915-01-462-0432
NSN 6220-01-305-9079
NSN 5915-00-213-3603