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 5925-00-594-0840
NSN 5975-01-182-8218
NSN 5835-01-381-4452
NSN 5895-01-434-9006
NSN 5895-01-121-3768
NSN 6240-00-166-0340
NSN 2925-00-330-7316
NSN 4140-01-151-5206
NSN 5975-01-535-4400
NSN 5855-01-017-7366
NSN 5935-01-224-4015
NSN 6105-01-095-6807