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 6220-00-963-4689
NSN 5855-01-329-6087
NSN 5930-01-094-5855
NSN 7035-01-252-5919
NSN 5975-01-206-4792
NSN 5950-01-067-4759
NSN 5905-00-518-5136
NSN 6685-01-010-2663
NSN 5855-01-258-5161
NSN 5935-01-054-3862
NSN 6220-00-815-0191
NSN 5945-01-472-2941