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 6145-01-139-4859
NSN 5965-01-100-2591
NSN 6685-00-140-0890
NSN 5925-01-113-8272
NSN 5975-00-932-0295
NSN 6135-00-269-5843
NSN 5945-00-248-2973
NSN 5945-00-197-7673
NSN 2925-00-228-8854
NSN 5945-00-594-5168
NSN 5996-01-568-8826
NSN 5905-00-279-4643