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 2925-01-648-6859
NSN 5996-00-368-9244
NSN 5895-01-072-3110
NSN 6650-01-442-7893
NSN 6320-01-618-7800
NSN 5990-00-067-6791
NSN 5895-01-235-4167
NSN 5960-01-262-1399
NSN 4140-00-152-7092
NSN 5930-01-382-9405
NSN 6320-01-547-9877
NSN 6135-00-913-2062