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 6645-01-497-6543
NSN 6145-01-181-4142
NSN 5990-00-359-9839
NSN 6110-01-024-0217
NSN 2925-00-789-1106
NSN 6220-00-798-2762
NSN 6220-01-262-9167
NSN 5999-01-573-9564
NSN 6320-00-701-0437
NSN 6110-01-090-0804
NSN 6610-01-591-4374
NSN 7035-00-337-8745