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 5999-00-269-2498
NSN 5950-00-832-9967
NSN 5855-01-361-9755
NSN 6150-01-174-8341
NSN 6135-01-430-3119
NSN 5905-01-432-0136
NSN 6145-01-083-0866
NSN 5895-00-871-8502
NSN 6320-00-809-5744
NSN 5985-01-205-0938
NSN 5985-01-280-3050
NSN 6650-00-552-5848