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 6130-00-725-3383
NSN 5915-01-132-5002
NSN 6320-00-994-0179
NSN 6320-01-090-8296
NSN 5999-01-444-3944
NSN 6620-01-170-8270
NSN 5990-01-150-7443
NSN 6150-01-089-9401
NSN 5960-01-476-5686
NSN 6650-01-231-9545
NSN 6110-01-654-7782
NSN 5920-01-617-9974