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 5855-01-483-2774
NSN 5930-01-441-2408
NSN 5930-00-487-0183
NSN 5925-01-621-2810
NSN 6620-00-278-7313
NSN 5935-01-580-3879
NSN 5965-01-174-6995
NSN 5835-01-442-6482
NSN 6650-00-809-1817
NSN 5895-01-298-8092
NSN 6105-01-550-4820
NSN 5905-01-586-3053