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 5930-01-263-6849
NSN 5915-00-758-7718
NSN 4140-01-500-3939
NSN 5915-01-539-7634
NSN 5895-01-301-7396
NSN 6145-01-236-0594
NSN 4140-01-087-0359
NSN 5975-01-392-4008
NSN 7035-01-352-6235
NSN 5960-00-105-7598
NSN 6135-01-231-4809
NSN 6240-00-861-2592