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 5950-00-889-5888
NSN 5930-00-975-9720
NSN 6320-01-519-8767
NSN 5855-01-381-7493
NSN 5985-01-328-8878
NSN 5990-01-168-0820
NSN 6135-01-408-9244
NSN 5930-01-615-8743
NSN 6320-00-098-2858
NSN 6610-01-245-8015
NSN 6135-00-209-6918
NSN 5935-01-100-3661