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 5905-00-950-9932
NSN 5965-00-372-2537
NSN 5930-01-598-6125
NSN 6645-01-143-7838
NSN 6135-01-592-4139
NSN 5925-01-343-5350
NSN 5950-01-291-6283
NSN 6610-01-534-5582
NSN 6220-00-071-4598
NSN 6145-01-085-2314
NSN 5930-01-597-0975
NSN 5950-01-516-8039