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 6620-01-426-2220
NSN 5999-01-044-4528
NSN 6145-00-862-7069
NSN 5998-00-225-2377
NSN 5835-01-642-4705
NSN 2925-01-212-1040
NSN 5895-01-232-5814
NSN 6110-01-281-7274
NSN 6130-01-311-9075
NSN 6620-01-504-5756
NSN 5915-01-391-7149
NSN 5996-00-452-2187