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 5930-01-054-1441
NSN 6145-01-067-7110
NSN 5950-01-561-9505
NSN 6105-01-401-5361
NSN 5910-01-023-0078
NSN 5965-00-942-1602
NSN 5910-00-007-7757
NSN 5998-00-399-2830
NSN 5950-01-483-5956
NSN 6110-01-650-9035
NSN 5855-01-539-0639
NSN 5996-01-566-0344