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 6150-01-562-0495
NSN 6135-00-932-3136
NSN 6130-01-483-4482
NSN 5895-01-177-9569
NSN 5855-00-427-7848
NSN 5998-01-184-0264
NSN 4140-01-574-3955
NSN 5950-01-136-9794
NSN 4140-01-202-8670
NSN 5895-01-522-9993
NSN 5990-00-484-3189
NSN 6135-01-543-4256