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 5915-00-622-6762
NSN 6620-01-288-4922
NSN 6145-01-227-5743
NSN 6110-00-886-3210
NSN 5920-01-231-3615
NSN 5855-01-325-9507
NSN 6645-00-955-7997
NSN 6645-01-534-3148
NSN 5930-01-157-0837
NSN 6645-01-259-7142
NSN 6145-00-686-8651
NSN 5965-01-414-2257