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 5920-01-081-0774
NSN 6645-01-378-5260
NSN 5996-01-327-0220
NSN 5975-01-177-8577
NSN 5835-01-453-3074
NSN 5990-01-642-1668
NSN 6130-01-584-0129
NSN 5999-01-634-0576
NSN 5855-01-149-4110
NSN 6110-00-852-0683
NSN 5990-00-222-9899
NSN 5925-01-399-2313