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 5950-01-304-2242
NSN 5920-00-451-4496
NSN 5855-00-548-4742
NSN 5965-01-240-0233
NSN 5855-01-147-4785
NSN 5935-01-532-2864
NSN 6650-00-168-1502
NSN 5975-00-486-8518
NSN 6150-01-459-6031
NSN 4140-01-599-0400
NSN 5935-01-399-8655
NSN 6685-01-647-8570