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 6645-01-395-2989
NSN 6145-01-130-5416
NSN 6145-01-204-3481
NSN 6650-00-197-7563
NSN 5925-01-421-4473
NSN 5930-01-591-8570
NSN 7035-00-541-8516
NSN 5990-01-529-8433
NSN 5965-00-454-8706
NSN 5915-01-459-5814
NSN 5915-00-269-9252
NSN 5985-00-007-6000