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 5975-01-003-9585
NSN 4140-01-063-5929
NSN 4140-01-465-5282
NSN 6105-00-161-1834
NSN 5945-00-245-7102
NSN 6610-00-010-9714
NSN 6320-01-600-5808
NSN 5950-00-269-2698
NSN 6105-01-485-6976
NSN 5985-01-167-8574
NSN 2925-01-625-6841
NSN 6685-01-463-8461