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 5960-00-140-9583
NSN 5895-00-539-8322
NSN 5985-01-602-4816
NSN 6685-00-868-7918
NSN 5945-00-149-0619
NSN 5905-01-199-5617
NSN 6105-00-255-5927
NSN 5999-00-310-8699
NSN 5855-00-922-6459
NSN 6620-00-257-2783
NSN 6650-01-406-7765
NSN 6610-01-586-8678