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 5998-00-835-1300
NSN 6150-01-652-7271
NSN 5990-01-174-6851
NSN 5905-01-065-7384
NSN 5905-01-578-7320
NSN 5999-01-246-5677
NSN 5965-01-660-9941
NSN 5945-00-101-0731
NSN 5975-00-457-0611
NSN 5990-01-499-6930
NSN 6620-00-248-6950
NSN 6145-01-523-3698