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 5915-01-470-3682
NSN 5999-01-200-5982
NSN 5990-00-861-7986
NSN 5996-01-415-3098
NSN 6110-00-271-9928
NSN 5905-01-342-8898
NSN 5905-01-248-9541
NSN 6150-01-592-6755
NSN 6320-01-019-1028
NSN 6320-01-050-1290
NSN 5945-01-576-5974
NSN 6645-01-512-6760