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 6145-01-448-7819
NSN 6650-01-531-1196
NSN 5835-01-414-3258
NSN 6105-01-655-2299
NSN 5990-01-384-2697
NSN 5910-01-453-9337
NSN 2925-01-318-8853
NSN 6650-01-580-8897
NSN 5950-00-350-8373
NSN 5915-01-093-6414
NSN 5930-01-249-9112
NSN 6145-01-010-0612