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 6610-00-401-2601
NSN 6645-00-901-6418
NSN 5960-01-054-3752
NSN 5998-00-129-6031
NSN 5985-00-914-8261
NSN 5835-00-928-5717
NSN 6145-01-390-4204
NSN 6150-00-284-2976
NSN 5855-01-564-1105
NSN 5855-01-079-8716
NSN 5895-01-408-3513
NSN 5925-01-655-7398