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 5895-01-652-6066
NSN 5960-00-923-5047
NSN 6650-01-385-6799
NSN 6150-00-254-8441
NSN 6105-01-503-1001
NSN 6135-00-461-3590
NSN 6620-01-550-8573
NSN 7035-00-445-9657
NSN 6645-01-389-8312
NSN 6135-01-275-1363
NSN 7035-01-581-7449
NSN 5990-00-698-3963