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 5975-00-316-2539
NSN 5950-01-088-7477
NSN 5998-01-262-2998
NSN 5990-01-097-4721
NSN 6320-01-108-5933
NSN 5895-00-239-6010
NSN 6610-01-106-1783
NSN 5975-01-465-7243
NSN 6240-01-562-3223
NSN 6105-01-069-4253
NSN 6150-00-526-3720
NSN 5985-01-068-4520