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 5935-01-334-4078
NSN 5960-00-472-5000
NSN 5915-00-460-2141
NSN 4140-00-955-5679
NSN 6320-00-070-4544
NSN 5835-00-678-6981
NSN 6610-00-040-4124
NSN 5915-01-155-2644
NSN 5975-00-115-1932
NSN 5920-01-643-8942
NSN 6610-01-379-3647
NSN 5985-00-295-3513