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 4140-00-477-1863
NSN 6145-00-975-4457
NSN 7035-00-108-4421
NSN 6105-00-845-6986
NSN 5960-00-600-1454
NSN 6685-00-647-3883
NSN 6220-01-206-5171
NSN 5935-01-445-4599
NSN 5990-01-268-2236
NSN 5835-00-827-1904
NSN 6220-01-616-2452
NSN 6135-00-255-1340