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 4140-00-203-0812
NSN 6685-01-285-1213
NSN 6685-01-056-1260
NSN 5965-00-575-4089
NSN 5910-01-620-9478
NSN 6105-00-075-2487
NSN 5996-01-073-2332
NSN 5915-01-539-1203
NSN 6240-01-270-5998
NSN 5975-01-087-3789
NSN 5910-01-025-0895
NSN 6610-01-302-6347