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 5895-01-431-7349
NSN 5910-01-024-8019
NSN 5996-01-220-2896
NSN 5910-01-492-1650
NSN 6610-01-435-4387
NSN 5950-01-640-9216
NSN 6685-01-523-5091
NSN 5945-01-522-0008
NSN 5950-01-132-3338
NSN 5855-01-147-6024
NSN 6645-00-796-7206
NSN 6150-01-349-3542