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 6610-01-163-1810
NSN 6620-01-557-6512
NSN 5835-01-118-4690
NSN 6240-01-587-9080
NSN 5915-01-391-7149
NSN 5950-01-542-7972
NSN 2925-01-055-7607
NSN 6145-01-542-9437
NSN 6150-01-437-7801
NSN 6220-01-642-0250
NSN 5930-00-205-9157
NSN 5950-00-140-8156