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 5915-01-023-5937
NSN 5910-00-865-4301
NSN 5935-01-077-7269
NSN 6645-01-660-3097
NSN 6610-01-622-4326
NSN 5930-01-400-4171
NSN 5950-00-810-5858
NSN 5998-01-186-4832
NSN 4140-01-193-7705
NSN 6145-01-433-3226
NSN 5905-00-579-2282
NSN 5935-00-802-0517