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 6240-00-280-0186
NSN 5985-00-255-6279
NSN 6650-00-451-1088
NSN 5905-01-257-9753
NSN 6110-01-576-9415
NSN 6645-01-283-2080
NSN 6620-01-350-5103
NSN 5835-00-911-6330
NSN 6110-01-545-3178
NSN 5965-01-589-2288
NSN 5950-01-403-2852
NSN 5965-01-607-1966