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 6320-01-185-3857
NSN 2925-01-157-9204
NSN 5935-01-555-1526
NSN 6650-00-658-9627
NSN 5985-00-833-7115
NSN 5905-01-584-4677
NSN 6150-00-324-4409
NSN 5975-01-031-3216
NSN 5895-00-954-8264
NSN 5905-01-272-0040
NSN 5835-01-416-6455
NSN 6220-01-382-0523