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 5855-00-791-5000
NSN 5910-00-365-5678
NSN 5998-01-378-5426
NSN 5975-00-292-3250
NSN 5835-01-383-1313
NSN 5895-01-272-8881
NSN 6610-01-633-8931
NSN 5998-01-400-1120
NSN 6130-00-469-0640
NSN 5950-00-816-9913
NSN 5985-01-412-8386
NSN 5930-01-397-0271