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 5920-01-100-5571
NSN 6150-01-035-9821
NSN 5835-01-310-8979
NSN 5965-01-474-8265
NSN 5895-01-549-1577
NSN 6685-01-426-2122
NSN 5925-01-650-7666
NSN 5965-01-501-5638
NSN 6110-01-208-4920
NSN 6685-01-521-8942
NSN 7035-00-403-5340
NSN 5930-01-385-6670