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 6105-00-794-0255
NSN 5985-00-689-9515
NSN 7035-01-081-5797
NSN 6105-00-453-3445
NSN 6110-01-500-7226
NSN 5990-01-485-0260
NSN 5985-01-563-7481
NSN 5935-00-905-4810
NSN 6620-00-104-6937
NSN 5920-01-329-2598
NSN 4140-01-078-8601
NSN 4140-00-494-2569