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 5965-01-633-8849
NSN 6240-01-151-2330
NSN 6130-00-835-5912
NSN 5999-00-144-2303
NSN 6620-01-222-4556
NSN 4140-00-550-2994
NSN 6105-01-301-7026
NSN 5925-00-194-9146
NSN 6145-01-614-0032
NSN 6240-01-450-6219
NSN 5915-01-476-7124
NSN 5998-01-421-9238