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 6620-01-574-6774
NSN 5920-01-615-2026
NSN 5985-00-343-3632
NSN 5935-01-415-0887
NSN 6645-01-400-1383
NSN 5960-00-103-0596
NSN 6110-01-066-8038
NSN 5990-01-478-8638
NSN 5905-00-909-1778
NSN 5965-01-132-8736
NSN 5985-00-450-8802
NSN 6220-01-357-3672