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 2925-00-233-5644
NSN 6150-00-932-3669
NSN 6130-00-215-0661
NSN 5975-01-276-6791
NSN 5910-00-980-0378
NSN 5975-00-018-0815
NSN 5920-00-339-0338
NSN 6105-01-366-7436
NSN 6610-01-293-9838
NSN 5990-01-581-5103
NSN 2925-00-156-8963
NSN 5996-00-947-8805