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 6145-01-529-9831
NSN 5905-00-369-1644
NSN 5950-01-289-6056
NSN 5835-00-583-1316
NSN 5905-01-173-2557
NSN 5920-01-341-6741
NSN 6685-01-259-6102
NSN 5905-00-833-8070
NSN 6135-01-277-7907
NSN 6145-00-420-6491
NSN 6240-00-594-7138
NSN 6220-01-343-4459