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 5925-01-088-6863
NSN 2925-00-176-3889
NSN 5930-00-632-5200
NSN 5965-01-398-0779
NSN 6620-01-401-5356
NSN 6650-01-248-2591
NSN 4140-01-413-4803
NSN 6620-01-400-2928
NSN 5990-00-524-2293
NSN 5930-00-224-4941
NSN 5910-01-521-4415
NSN 5945-00-197-2866