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 2925-01-025-0082
NSN 5855-01-053-6782
NSN 6150-00-219-5402
NSN 4140-01-065-1884
NSN 6150-01-305-6819
NSN 5935-01-373-5081
NSN 2925-01-021-3150
NSN 6645-00-079-1430
NSN 5960-01-112-8273
NSN 5999-00-993-4917
NSN 6320-01-125-3361
NSN 6105-00-143-5836