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 6620-01-417-4081
NSN 6145-00-722-9700
NSN 6685-00-917-2153
NSN 5835-01-568-7796
NSN 6150-01-435-4947
NSN 5895-00-089-9208
NSN 5895-01-384-3565
NSN 5835-01-519-3834
NSN 2925-01-324-6423
NSN 5960-00-349-7650
NSN 5990-01-032-5160
NSN 6145-01-356-2176