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 5855-00-247-7219
NSN 5925-01-124-8487
NSN 6150-01-510-1844
NSN 2925-00-915-1827
NSN 5835-01-044-2628
NSN 5855-01-359-5727
NSN 6685-00-547-6218
NSN 5835-01-131-2027
NSN 6645-01-192-4079
NSN 5895-00-064-1745
NSN 6650-01-609-1288
NSN 4140-01-348-4053