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 5915-01-305-3553
NSN 6145-01-420-3247
NSN 6110-01-278-2880
NSN 5975-01-499-6057
NSN 5920-01-303-5951
NSN 6135-01-156-4627
NSN 5960-01-141-9986
NSN 6610-01-224-7247
NSN 5998-01-471-2846
NSN 5920-01-364-1167
NSN 5855-01-441-1392
NSN 5910-01-393-3417