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 5950-01-398-8307
NSN 6645-01-399-0661
NSN 5996-00-619-3378
NSN 2925-00-654-3206
NSN 6105-01-196-6377
NSN 6130-01-395-2943
NSN 5999-01-458-4371
NSN 5935-01-212-0851
NSN 5925-01-044-5508
NSN 6110-01-008-5728
NSN 5999-01-349-5285
NSN 5935-01-529-7007