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 5999-01-211-4428
NSN 5996-01-089-5339
NSN 6150-01-223-7292
NSN 5925-00-729-4096
NSN 2925-01-572-0539
NSN 5965-00-062-0559
NSN 5985-00-189-0953
NSN 5999-00-969-9270
NSN 5960-01-364-1318
NSN 5960-01-368-5874
NSN 6130-00-587-7062
NSN 5985-00-788-2888