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 6105-00-906-8101
NSN 6220-00-535-3230
NSN 5998-00-172-0424
NSN 6685-01-597-6243
NSN 5835-01-414-3258
NSN 6145-00-683-1166
NSN 6320-00-394-8458
NSN 5960-00-933-0262
NSN 5996-00-135-6943
NSN 5930-01-058-8233
NSN 4140-01-407-5919
NSN 4140-01-235-6869