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 5985-00-081-9142
NSN 5950-01-095-4704
NSN 6220-01-394-5263
NSN 5895-01-441-0256
NSN 5975-00-456-0627
NSN 6145-01-163-9687
NSN 5945-00-824-8846
NSN 4140-00-010-1267
NSN 5985-00-849-0055
NSN 6620-00-943-8020
NSN 6150-01-501-4588
NSN 7035-01-324-3839