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 6650-01-017-6716
NSN 5985-01-420-3434
NSN 6150-00-369-0376
NSN 5855-01-441-1392
NSN 6130-01-318-4321
NSN 5855-01-035-2866
NSN 5990-00-144-3243
NSN 6685-00-792-0791
NSN 5975-00-217-1313
NSN 6130-01-455-8450
NSN 5835-00-034-4976
NSN 5935-00-335-6324