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 6130-01-116-2571
NSN 5950-01-530-7365
NSN 6645-00-010-3054
NSN 6620-01-477-0123
NSN 2925-01-004-5627
NSN 6650-01-360-3848
NSN 5975-01-474-6278
NSN 6610-01-370-3886
NSN 5950-01-231-8274
NSN 2925-01-359-9818
NSN 5990-00-162-7273
NSN 5895-01-106-0433