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 6610-01-420-7817
NSN 6650-01-245-7642
NSN 6240-01-534-5829
NSN 5999-01-415-1515
NSN 5905-01-601-9803
NSN 5999-00-286-6231
NSN 5950-00-761-6427
NSN 5910-01-560-4230
NSN 5999-01-417-9808
NSN 5999-01-248-2712
NSN 6610-01-365-7796
NSN 6220-01-162-3293