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 5925-01-367-1807
NSN 5835-01-130-6503
NSN 5960-00-839-1529
NSN 6135-00-276-7625
NSN 5905-01-563-7917
NSN 4140-01-083-5870
NSN 5930-01-418-9569
NSN 6685-01-327-3195
NSN 5960-00-285-1001
NSN 6620-01-329-7510
NSN 5990-01-156-7004
NSN 5925-01-192-8786