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 5985-01-618-3369
NSN 6110-01-342-5205
NSN 6220-01-346-4501
NSN 5925-01-225-3430
NSN 5990-01-470-2565
NSN 5999-01-384-3532
NSN 5960-01-284-1642
NSN 6130-01-551-1185
NSN 6610-01-283-6739
NSN 6110-01-012-4710
NSN 6145-00-784-3741
NSN 6610-00-837-3012