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 5905-01-620-5346
NSN 5950-01-277-2606
NSN 6240-01-100-2597
NSN 7035-01-073-9424
NSN 6130-01-215-9910
NSN 5998-00-739-8930
NSN 6220-01-618-4432
NSN 6135-00-503-7213
NSN 5998-01-321-6852
NSN 5996-00-538-2801
NSN 5905-00-917-7719
NSN 2925-00-925-0545