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 5905-01-142-0300
NSN 5935-01-063-7719
NSN 5950-00-597-8644
NSN 5975-01-046-7108
NSN 6645-00-283-6794
NSN 6645-01-266-0883
NSN 5990-00-543-0234
NSN 6130-01-156-1551
NSN 5950-01-310-7713
NSN 5910-01-144-2233
NSN 5996-01-192-5594
NSN 7035-01-423-8343