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 6320-01-143-3597
NSN 5925-00-491-4573
NSN 5895-01-415-6870
NSN 5999-01-355-2985
NSN 5960-01-243-0007
NSN 6645-00-819-5045
NSN 6620-00-938-1789
NSN 5950-01-524-2199
NSN 5855-01-443-0381
NSN 6610-00-222-4108
NSN 4140-01-237-4358
NSN 5915-00-437-4081