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 6685-01-325-6755
NSN 6320-01-567-9792
NSN 5930-00-185-8904
NSN 5960-00-289-6591
NSN 5930-01-057-3564
NSN 5950-01-144-5555
NSN 5965-01-612-3799
NSN 5996-01-608-5244
NSN 6620-01-346-9340
NSN 6645-01-227-2036
NSN 5925-01-643-5706
NSN 5985-00-074-1002