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 5930-01-045-3760
NSN 5925-00-262-6087
NSN 6145-01-210-7992
NSN 5998-00-003-7973
NSN 5835-01-439-0180
NSN 5905-00-502-1039
NSN 5990-01-654-6203
NSN 2925-00-735-4979
NSN 5915-00-983-9133
NSN 6320-01-364-1732
NSN 5915-00-915-3454
NSN 5915-01-279-0332