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 5920-01-398-0580
NSN 5950-01-336-6931
NSN 5835-01-424-0054
NSN 5975-00-767-4995
NSN 5960-01-443-3067
NSN 5905-01-335-6749
NSN 5945-00-581-2804
NSN 5930-01-007-3119
NSN 2925-01-327-3069
NSN 5996-00-054-7287
NSN 5965-00-285-0745
NSN 5835-01-229-6964