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 6220-01-176-9139
NSN 5999-00-728-0905
NSN 5945-01-394-8377
NSN 6145-01-318-9667
NSN 5990-00-451-7630
NSN 5895-00-459-7468
NSN 5930-01-015-3866
NSN 5930-00-364-7798
NSN 6135-01-487-6275
NSN 7035-01-512-1826
NSN 5965-01-408-5990
NSN 5950-00-152-9587