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 6685-01-211-6590
NSN 5905-01-377-7637
NSN 5855-01-331-8502
NSN 5930-00-214-0431
NSN 5905-00-901-6185
NSN 5895-01-183-0424
NSN 4140-01-055-2900
NSN 5950-01-160-5984
NSN 6320-00-164-4087
NSN 5925-00-107-4234
NSN 6620-01-462-1625
NSN 5960-00-188-8648