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 5965-01-495-0316
NSN 5990-00-140-1159
NSN 5915-00-549-1098
NSN 5999-01-468-0300
NSN 7035-00-908-4933
NSN 5895-01-286-7068
NSN 5925-01-544-0001
NSN 5910-00-153-6203
NSN 4140-00-285-6042
NSN 5835-01-083-7037
NSN 2925-01-277-5882
NSN 6130-01-193-8992