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 6685-01-288-3076
NSN 5930-01-024-9288
NSN 7035-00-991-6877
NSN 5925-01-445-6112
NSN 6145-00-861-6035
NSN 5855-01-145-8973
NSN 5910-00-801-2963
NSN 6620-00-010-1415
NSN 6610-00-918-3389
NSN 5835-01-143-9143
NSN 6110-00-553-8816
NSN 6650-01-528-9868