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 5905-00-490-9839
NSN 6130-01-436-3611
NSN 2925-01-467-1192
NSN 6110-01-127-7264
NSN 6610-01-659-3277
NSN 6150-00-186-7728
NSN 5905-00-174-5708
NSN 5975-01-600-0155
NSN 6650-00-460-5059
NSN 5960-00-525-1898
NSN 5905-01-162-6973
NSN 5920-01-356-4122