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 5996-01-448-6814
NSN 5985-01-459-3913
NSN 5965-01-030-0108
NSN 6320-01-501-7935
NSN 6320-01-198-4024
NSN 6320-00-546-9249
NSN 5950-01-361-1623
NSN 5965-00-971-5522
NSN 6130-01-068-4475
NSN 5855-00-294-7532
NSN 5895-00-387-4901
NSN 5895-01-043-2193