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 5925-00-911-0593
NSN 6150-00-518-1402
NSN 5990-00-757-5262
NSN 6645-01-549-0935
NSN 6320-01-495-0512
NSN 5998-01-130-8322
NSN 6320-00-790-4844
NSN 6240-00-105-0584
NSN 2925-01-172-9209
NSN 5985-00-141-9036
NSN 5990-01-651-0170
NSN 5975-01-384-3019