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 5990-00-013-6862
NSN 5920-00-271-3217
NSN 6145-01-227-0659
NSN 6130-00-155-5873
NSN 5905-01-467-9212
NSN 5985-00-334-9245
NSN 5855-00-058-1293
NSN 5905-01-604-3892
NSN 5975-01-580-9325
NSN 5975-01-193-8662
NSN 6110-01-424-3101
NSN 5965-01-353-0085