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 5965-01-386-2988
NSN 5960-01-535-1743
NSN 6150-01-380-4045
NSN 5905-00-299-2098
NSN 6135-00-613-1068
NSN 4140-01-441-2339
NSN 5930-01-361-5593
NSN 5990-01-652-7373
NSN 6650-00-084-4258
NSN 5960-00-924-1944
NSN 5910-01-067-9403
NSN 4140-01-447-3716