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 5975-00-715-3710
NSN 5930-01-189-4409
NSN 5998-01-311-1398
NSN 6110-01-038-5828
NSN 6685-00-208-2898
NSN 6110-01-087-3551
NSN 6145-01-413-3286
NSN 5950-01-410-7685
NSN 5990-01-649-4647
NSN 6645-01-463-3441
NSN 6320-01-185-3857
NSN 5998-01-445-4582