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 5960-00-621-0535
NSN 6130-00-242-1465
NSN 6645-01-025-1002
NSN 5925-01-440-9111
NSN 6110-01-519-9131
NSN 5975-01-103-4835
NSN 7035-01-309-6709
NSN 2925-01-294-0585
NSN 4140-00-005-4574
NSN 5835-01-207-6612
NSN 6240-00-872-3365
NSN 2925-01-197-7864