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 5998-00-480-8035
NSN 5945-00-081-5482
NSN 6320-01-440-3844
NSN 6240-00-280-8502
NSN 7035-01-399-5354
NSN 5895-01-524-0517
NSN 6220-01-531-5064
NSN 6135-01-180-9611
NSN 5855-00-138-2386
NSN 5985-01-634-0635
NSN 5930-01-280-5466
NSN 5990-01-591-0701