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 5960-01-099-9409
NSN 5996-01-507-1515
NSN 7035-01-019-5729
NSN 5950-01-325-1551
NSN 5925-01-574-0451
NSN 5965-00-236-0016
NSN 5855-00-560-0110
NSN 6145-01-544-6892
NSN 5925-00-038-6147
NSN 6135-01-423-7502
NSN 6145-01-246-1080
NSN 6110-01-523-0229