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 6105-01-114-4452
NSN 6240-00-456-2578
NSN 6145-00-226-1194
NSN 6220-01-499-4750
NSN 6320-00-456-0836
NSN 5985-01-207-0097
NSN 5855-00-688-9954
NSN 5996-01-426-8531
NSN 5945-01-202-8119
NSN 6240-01-110-8265
NSN 5960-01-347-6791
NSN 6220-01-464-6203