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 6220-00-445-9284
NSN 6620-01-589-5411
NSN 5996-01-003-0831
NSN 5895-00-959-2284
NSN 6135-01-350-2932
NSN 5999-01-501-6531
NSN 6320-01-607-1491
NSN 5950-01-434-9076
NSN 5945-01-312-1779
NSN 7035-01-610-7389
NSN 6145-00-787-7313
NSN 4140-01-503-0034