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 5996-00-980-1998
NSN 5910-01-054-5465
NSN 5915-01-141-6726
NSN 5915-00-004-6000
NSN 5835-01-380-5943
NSN 5950-01-632-3914
NSN 5985-01-003-8039
NSN 5985-01-414-3368
NSN 5965-01-164-0561
NSN 6620-00-880-7728
NSN 5975-00-253-9743
NSN 6645-01-447-6777