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 5996-00-213-7121
NSN 6645-01-525-3123
NSN 5915-00-935-4984
NSN 6650-01-052-8863
NSN 5895-01-394-4842
NSN 5835-00-561-9994
NSN 5855-01-147-6024
NSN 5910-01-250-7745
NSN 6620-00-608-1480
NSN 4140-01-323-7214
NSN 5920-00-285-2245
NSN 5996-01-359-4222