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 5915-00-592-8833
NSN 5975-01-057-6134
NSN 6610-00-421-8919
NSN 5930-01-499-1917
NSN 4140-01-441-9163
NSN 5996-01-442-7148
NSN 5835-01-009-2417
NSN 6145-00-082-1906
NSN 5990-00-530-3855
NSN 5945-00-827-2158
NSN 5855-01-338-1718
NSN 5996-00-992-1546