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 5985-01-644-2004
NSN 5996-01-327-8782
NSN 6610-01-406-4985
NSN 5975-00-233-6301
NSN 5835-01-470-2157
NSN 5920-01-501-2294
NSN 5975-01-189-4660
NSN 6105-00-437-7834
NSN 5998-01-167-3722
NSN 5990-01-482-5950
NSN 6685-00-232-3239
NSN 5960-01-133-3551