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 5905-00-238-7212
NSN 5945-00-262-0888
NSN 5960-00-675-3439
NSN 4140-00-395-7006
NSN 6320-01-006-6138
NSN 5965-00-661-0469
NSN 5965-00-295-7164
NSN 5925-01-423-7803
NSN 5975-00-578-9759
NSN 5965-00-812-9158
NSN 5905-01-487-8868
NSN 5930-01-424-5628