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 5996-01-585-3295
NSN 5915-00-291-3736
NSN 5930-00-915-3457
NSN 5999-00-261-7972
NSN 6220-01-423-5452
NSN 6645-01-014-0793
NSN 6145-00-784-3741
NSN 5905-01-582-8708
NSN 5960-00-052-8984
NSN 6620-01-212-4298
NSN 5960-00-289-6591
NSN 5960-00-138-5109