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 6150-01-142-2079
NSN 6320-00-432-2772
NSN 5996-01-011-3508
NSN 4140-00-406-3577
NSN 5998-01-579-6349
NSN 6110-01-004-5451
NSN 6145-01-024-9848
NSN 6650-01-502-0254
NSN 6105-01-204-2920
NSN 6610-00-626-8523
NSN 5895-01-477-5998
NSN 6220-01-541-2603