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 5855-01-335-8907
NSN 2925-00-010-9609
NSN 5855-01-093-8202
NSN 6220-01-384-3879
NSN 6645-00-270-6817
NSN 4140-01-657-6505
NSN 5920-01-274-8565
NSN 5999-01-452-6247
NSN 5960-01-535-1743
NSN 5990-01-429-6211
NSN 6620-01-440-9810
NSN 5895-00-250-2022