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 6220-01-025-4535
NSN 4140-00-209-7965
NSN 5960-01-425-1454
NSN 5945-00-960-7367
NSN 5965-01-551-1900
NSN 6220-00-100-6276
NSN 6240-00-811-2777
NSN 2925-01-250-2731
NSN 7035-00-188-6674
NSN 6110-01-467-7737
NSN 6685-00-252-0689
NSN 5905-01-237-8707