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 6620-01-263-6697
NSN 6220-00-760-7806
NSN 6110-01-503-0839
NSN 5905-01-551-4683
NSN 5960-01-354-0762
NSN 7035-01-462-7735
NSN 5925-01-363-1365
NSN 2925-01-386-7392
NSN 5835-00-681-0005
NSN 5998-00-620-2593
NSN 6150-01-487-2679
NSN 5895-01-599-4905