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 5915-01-067-9870
NSN 2925-01-574-7119
NSN 5975-01-460-1895
NSN 6135-00-100-8890
NSN 6645-00-613-2378
NSN 5975-01-469-5558
NSN 5996-01-652-9693
NSN 5999-00-011-8321
NSN 5925-00-552-6491
NSN 5855-01-461-8169
NSN 5996-01-032-4815
NSN 6135-00-635-9187