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 6610-01-152-2821
NSN 5905-01-211-2754
NSN 5999-01-428-4012
NSN 5835-01-587-8787
NSN 6145-01-158-4833
NSN 6320-00-521-9350
NSN 6320-00-731-6134
NSN 5999-01-414-8228
NSN 6105-01-097-2119
NSN 6645-00-089-3154
NSN 5935-00-062-1547
NSN 4140-00-027-5150