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 6320-01-462-3555
NSN 5998-00-931-6777
NSN 5985-01-247-9999
NSN 5945-01-338-5490
NSN 5915-00-996-7763
NSN 5930-01-351-8953
NSN 5960-01-325-2241
NSN 5990-00-093-6794
NSN 5930-01-288-0727
NSN 6145-01-250-9356
NSN 5915-01-170-5086
NSN 6610-01-433-2219