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 5855-00-560-0110
NSN 5935-01-441-9578
NSN 6220-01-114-1237
NSN 5990-01-647-8574
NSN 6150-01-347-9289
NSN 5945-01-027-1351
NSN 6320-00-513-8376
NSN 6145-00-968-6590
NSN 6645-00-912-6245
NSN 5855-01-302-9778
NSN 6110-00-608-0854
NSN 6650-01-022-7318