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 5920-01-197-2463
NSN 6685-01-380-9740
NSN 5910-01-388-1146
NSN 5930-00-609-4161
NSN 6240-00-717-0844
NSN 6130-01-297-6971
NSN 6110-01-633-9660
NSN 7035-00-283-3112
NSN 5998-01-539-4724
NSN 5960-00-856-9245
NSN 5855-00-494-9581
NSN 6135-00-255-1340