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 6650-00-113-7698
NSN 6610-00-230-4949
NSN 6150-00-952-2766
NSN 6110-00-782-7193
NSN 5965-01-011-1228
NSN 5915-01-502-5962
NSN 6135-01-050-3194
NSN 6645-00-391-6264
NSN 5945-01-450-4264
NSN 6320-00-456-2092
NSN 5855-00-433-2377
NSN 6110-00-939-2207