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 5855-00-494-9581
NSN 5999-01-195-7571
NSN 6620-01-531-3250
NSN 5960-00-633-7670
NSN 6145-01-441-1201
NSN 5855-01-464-3152
NSN 6610-01-200-6861
NSN 5835-01-162-3042
NSN 2925-01-412-9520
NSN 5965-00-928-4854
NSN 6610-00-461-5471
NSN 6110-01-116-7772