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 6110-01-582-9837
NSN 6240-00-076-2752
NSN 5950-00-203-5621
NSN 5855-00-930-9478
NSN 5930-01-196-4818
NSN 6105-00-901-6826
NSN 6135-01-394-4160
NSN 4140-01-482-0163
NSN 6110-01-454-0697
NSN 5835-00-711-3371
NSN 5996-00-540-6570
NSN 6610-00-758-9147