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 5835-01-486-0545
NSN 6150-01-105-1764
NSN 4140-00-225-8586
NSN 7035-00-703-3535
NSN 6240-01-291-7500
NSN 6620-01-431-9176
NSN 5945-00-104-8097
NSN 7035-00-417-2967
NSN 5960-01-010-3083
NSN 5855-01-364-9810
NSN 5998-01-226-6584
NSN 5965-01-421-9593