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 5975-01-322-8183
NSN 5855-01-360-6650
NSN 5895-01-304-6508
NSN 5915-01-621-5104
NSN 5910-00-063-1158
NSN 5920-01-041-1993
NSN 2925-01-421-0068
NSN 6645-00-244-0359
NSN 5975-01-373-3981
NSN 5960-01-447-1154
NSN 5960-01-222-3207
NSN 5950-01-138-8216