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 6645-00-960-6594
NSN 4140-01-433-3839
NSN 5915-01-579-7181
NSN 5996-01-391-4529
NSN 5998-01-378-7069
NSN 4140-01-077-7555
NSN 5960-01-543-0235
NSN 6145-00-793-7816
NSN 5975-01-433-4527
NSN 5925-01-148-5404
NSN 5915-00-485-9114
NSN 5996-01-390-8258