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 6650-01-413-3066
NSN 4140-01-660-5693
NSN 2925-00-486-8640
NSN 5835-01-158-6878
NSN 5905-01-452-8138
NSN 5975-01-574-6746
NSN 6650-01-619-9986
NSN 5915-01-453-2261
NSN 6645-01-437-7770
NSN 7035-01-385-7306
NSN 5999-00-756-8508
NSN 5950-01-132-1618