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 6645-00-042-9587
NSN 5915-01-376-0898
NSN 5855-00-149-0766
NSN 5930-01-426-9130
NSN 6145-01-261-5150
NSN 4140-01-398-8180
NSN 6320-01-294-7161
NSN 6150-00-862-3247
NSN 5915-01-172-9864
NSN 5975-01-580-7417
NSN 5985-01-201-6509
NSN 5930-00-028-4322