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 5930-01-134-0694
NSN 6320-01-230-8444
NSN 6150-00-485-2878
NSN 5855-01-143-3183
NSN 6240-01-317-7078
NSN 5920-01-218-5415
NSN 5920-01-525-3918
NSN 6105-00-377-8206
NSN 6150-01-323-9441
NSN 4140-01-004-8424
NSN 5965-01-645-9432
NSN 5998-01-607-5598