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 2925-01-197-7864
NSN 5910-00-432-6429
NSN 5855-00-189-6066
NSN 5945-01-370-4784
NSN 6685-00-912-1847
NSN 5905-01-540-9640
NSN 2925-01-564-8043
NSN 6145-01-307-0829
NSN 6610-01-182-0089
NSN 5895-01-384-4941
NSN 6650-01-447-2858
NSN 5895-01-185-6433