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 5990-01-633-9503
NSN 5915-01-163-8737
NSN 6650-00-991-8436
NSN 5998-00-915-5132
NSN 6150-01-251-3027
NSN 5895-01-377-6289
NSN 6645-01-214-0334
NSN 5996-01-329-3408
NSN 6130-01-057-2610
NSN 2925-00-265-7539
NSN 5990-01-193-0487
NSN 6110-01-633-9660