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 6685-01-481-5725
NSN 7035-01-509-1381
NSN 5945-01-199-6948
NSN 2925-00-495-8130
NSN 5965-01-264-1738
NSN 6240-01-343-4322
NSN 5915-01-132-5002
NSN 5925-00-169-4513
NSN 5965-00-275-0491
NSN 5998-01-009-6507
NSN 6685-00-913-3765
NSN 5990-01-219-2703