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 6135-00-209-6918
NSN 5855-01-433-4388
NSN 5960-01-624-1170
NSN 5985-01-551-7508
NSN 5905-01-487-5744
NSN 5950-00-310-4072
NSN 6130-01-100-3285
NSN 5990-01-395-4194
NSN 5945-00-135-4134
NSN 6685-01-153-1846
NSN 5855-01-642-5649
NSN 5895-01-200-4130