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 5920-00-924-7348
NSN 5835-01-514-5758
NSN 6135-01-422-0140
NSN 5950-00-026-0212
NSN 5998-00-560-2302
NSN 6145-01-495-0521
NSN 6650-01-461-7713
NSN 5985-00-767-1193
NSN 6685-00-619-7770
NSN 6145-00-968-6603
NSN 5996-01-417-3139
NSN 5985-01-401-5387