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 5925-01-382-1005
NSN 6610-01-232-4802
NSN 6110-01-400-4207
NSN 5950-01-394-2329
NSN 5895-00-516-9357
NSN 5925-00-235-0046
NSN 5945-01-254-3773
NSN 5920-00-647-3467
NSN 6240-01-094-6262
NSN 5935-00-729-4099
NSN 5945-00-082-1195
NSN 5960-01-191-1982