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 6320-01-605-7059
NSN 6145-01-543-3527
NSN 5930-00-946-6819
NSN 5950-01-018-4814
NSN 4140-01-544-1990
NSN 5950-01-435-4405
NSN 5905-01-608-4123
NSN 6150-00-268-3659
NSN 6685-01-252-1085
NSN 5985-00-432-1486
NSN 5930-00-891-6755
NSN 6240-01-633-6350