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 5935-00-971-6743
NSN 5960-01-658-9538
NSN 5895-00-250-8931
NSN 5925-01-201-3804
NSN 5895-01-431-7349
NSN 5935-01-332-8789
NSN 6135-00-990-1822
NSN 5975-01-074-9162
NSN 5950-01-119-6688
NSN 4140-01-607-1537
NSN 5996-00-525-1777
NSN 6240-00-916-8226