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 5998-01-468-5747
NSN 5950-00-397-9869
NSN 5905-01-522-4281
NSN 6220-00-276-8681
NSN 6620-01-130-5700
NSN 5950-01-501-3076
NSN 5960-00-739-3357
NSN 6320-00-270-8222
NSN 7035-00-517-8232
NSN 6135-01-615-0812
NSN 6685-01-147-0960
NSN 5835-01-561-2959