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 2925-00-957-7329
NSN 5999-00-153-0917
NSN 6685-00-136-3151
NSN 5975-01-467-3005
NSN 6130-00-417-6200
NSN 5999-00-435-3782
NSN 5996-01-007-0693
NSN 5855-00-357-1158
NSN 5930-01-495-5571
NSN 5855-00-079-2370
NSN 5925-00-240-7676
NSN 6220-01-068-8822