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 5945-00-935-6922
NSN 6130-01-314-5274
NSN 6610-00-654-0273
NSN 5999-01-205-4607
NSN 5935-01-436-9662
NSN 6645-01-025-1002
NSN 6240-00-300-9883
NSN 6130-00-433-2867
NSN 5910-01-144-0439
NSN 5960-01-387-0373
NSN 5999-01-566-2163
NSN 7035-01-433-3547