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 5985-01-411-0200
NSN 6610-01-257-5808
NSN 6220-01-436-6166
NSN 6650-01-500-4549
NSN 6650-01-300-9670
NSN 5935-01-356-4273
NSN 6220-00-854-2532
NSN 6650-01-418-6661
NSN 6620-00-933-3640
NSN 6135-01-399-8230
NSN 6685-00-407-8342
NSN 6135-01-222-0703