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 5999-00-433-0450
NSN 5960-00-997-0502
NSN 5855-00-310-2740
NSN 5950-01-433-1116
NSN 5915-01-110-3277
NSN 6610-00-417-4299
NSN 6145-00-949-8965
NSN 5835-00-155-1379
NSN 5905-01-100-7108
NSN 5998-01-544-7592
NSN 6240-01-226-4858
NSN 2925-00-549-6759