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 6650-01-145-5173
NSN 5996-01-471-3447
NSN 5895-01-197-4517
NSN 5920-00-814-2328
NSN 6240-01-485-3116
NSN 5910-01-106-1692
NSN 5945-00-943-9922
NSN 6145-00-155-5297
NSN 6610-01-108-8914
NSN 5998-01-583-2962
NSN 6220-01-396-2613
NSN 2925-01-580-2993