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 6620-01-353-9224
NSN 6240-00-274-4028
NSN 6610-00-814-0569
NSN 6105-01-504-8764
NSN 6610-00-146-3499
NSN 6240-00-538-8907
NSN 5835-01-593-3239
NSN 5920-00-775-7994
NSN 5930-01-633-3026
NSN 5915-01-627-4883
NSN 5985-01-268-1804
NSN 6320-01-132-2746