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 5965-01-479-8214
NSN 5895-01-407-1532
NSN 5975-00-088-2765
NSN 7035-01-011-3760
NSN 2925-01-270-1124
NSN 5855-01-346-7682
NSN 5998-00-938-0439
NSN 6320-01-512-2031
NSN 4140-00-086-3814
NSN 4140-00-227-8228
NSN 6130-00-205-1714
NSN 5855-01-100-3272