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 5835-00-405-1099
NSN 5960-00-181-0640
NSN 5930-01-391-9730
NSN 6620-00-984-7252
NSN 5965-01-330-6807
NSN 5950-00-863-1009
NSN 5905-00-523-8458
NSN 6320-00-905-0543
NSN 6685-01-010-3084
NSN 5935-01-620-3939
NSN 5950-01-570-1816
NSN 5895-01-643-4214