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 5950-01-251-5061
NSN 5910-01-352-3624
NSN 5855-01-076-2741
NSN 5910-00-282-7918
NSN 6110-01-182-4937
NSN 6145-01-605-0948
NSN 6610-00-113-9176
NSN 6610-01-368-0465
NSN 6650-01-618-0680
NSN 5999-00-394-4540
NSN 2925-01-067-4446
NSN 6150-01-084-6181