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 6145-01-580-8059
NSN 6135-00-542-6216
NSN 5998-01-563-6520
NSN 5915-00-919-7143
NSN 6650-00-698-5869
NSN 5915-00-813-3368
NSN 6240-01-381-6815
NSN 6650-00-554-1457
NSN 5930-00-490-7910
NSN 5960-00-895-0542
NSN 6620-00-959-6614
NSN 5855-01-354-7291