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 5950-01-457-1421
NSN 6645-01-507-2887
NSN 5945-01-270-4063
NSN 6150-01-185-8410
NSN 6110-01-500-3780
NSN 6110-00-288-4179
NSN 5835-01-235-9051
NSN 5895-00-179-8608
NSN 5910-01-116-3574
NSN 5925-00-772-8168
NSN 5920-01-319-6790
NSN 5990-00-067-6791