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 5999-01-577-5545
NSN 5920-01-456-1560
NSN 6650-00-021-9555
NSN 6610-00-269-4506
NSN 6610-01-210-8493
NSN 5999-01-462-1792
NSN 4140-01-400-3610
NSN 5965-00-088-1722
NSN 5925-01-030-5645
NSN 5905-01-348-3547
NSN 5935-00-632-7795
NSN 6145-01-138-3577