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 5965-01-629-0975
NSN 5945-00-204-9949
NSN 7035-01-380-3759
NSN 6610-01-536-4056
NSN 6150-01-069-2263
NSN 4140-01-032-5746
NSN 5960-01-487-6436
NSN 6320-01-039-5891
NSN 6610-01-507-9476
NSN 5965-01-194-3453
NSN 5950-00-448-8857
NSN 5925-01-170-7899