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 6610-01-648-6527
NSN 6105-00-935-2700
NSN 6150-01-426-3904
NSN 2925-00-782-1498
NSN 5996-01-050-0900
NSN 6240-01-449-1387
NSN 5985-01-003-7886
NSN 5985-01-205-3172
NSN 5920-01-431-2174
NSN 6320-01-384-3850
NSN 6150-00-005-5302
NSN 5855-01-495-6457