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 5960-01-599-9821
NSN 2925-01-479-3806
NSN 5990-01-370-7912
NSN 5975-01-323-4510
NSN 6105-01-560-7802
NSN 6150-01-268-3144
NSN 5975-01-505-1975
NSN 6620-01-281-6386
NSN 6610-01-248-4339
NSN 6220-01-290-3081
NSN 6320-00-036-3688
NSN 6240-01-103-9554