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 5990-01-086-4825
NSN 5905-01-035-3117
NSN 5999-01-345-5688
NSN 5996-00-823-9164
NSN 5895-00-995-7110
NSN 4140-00-472-4615
NSN 5895-00-186-8572
NSN 5905-00-681-1197
NSN 5895-01-607-6597
NSN 6240-00-607-0828
NSN 5930-01-522-2835
NSN 5965-01-444-1322