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 6650-01-604-9073
NSN 5930-01-573-0469
NSN 5855-01-007-9541
NSN 6650-01-406-3086
NSN 6135-01-244-5580
NSN 6610-00-227-8846
NSN 6240-01-411-5425
NSN 5920-01-319-6790
NSN 6650-01-013-9958
NSN 6620-01-254-7963
NSN 5920-00-296-0454
NSN 6645-01-207-5065