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 5855-01-063-6340
NSN 5975-01-283-8831
NSN 5998-00-241-2412
NSN 7035-01-361-8821
NSN 5945-00-705-1779
NSN 6105-01-164-2120
NSN 5920-01-189-0115
NSN 6610-01-642-0258
NSN 5905-01-089-3831
NSN 5985-00-079-0598
NSN 5855-00-058-1293
NSN 6130-00-055-3330