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 6620-01-442-8444
NSN 5910-00-276-8592
NSN 6135-01-461-2915
NSN 6135-01-387-0754
NSN 6110-01-426-3347
NSN 6320-01-046-5228
NSN 5935-01-200-6669
NSN 5996-00-368-9244
NSN 7035-00-437-7950
NSN 5965-01-085-4299
NSN 6145-01-100-7104
NSN 5835-01-406-4066