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 5920-00-930-4063
NSN 5950-01-158-2606
NSN 5950-00-683-8304
NSN 5910-01-350-1984
NSN 5950-01-318-0799
NSN 7035-00-490-0485
NSN 7035-00-731-8729
NSN 5935-01-447-1657
NSN 6610-01-291-4173
NSN 6620-01-475-1441
NSN 5905-01-611-2091
NSN 5985-01-425-1429