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 6650-00-246-3751
NSN 6135-01-040-1446
NSN 5960-01-147-8842
NSN 5915-00-141-0410
NSN 5945-01-659-3326
NSN 6645-01-473-3752
NSN 5925-00-915-1204
NSN 5960-01-411-5899
NSN 5998-01-110-6969
NSN 5930-01-098-5280
NSN 5998-01-547-1995
NSN 6620-01-248-0358