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 5920-01-567-4634
NSN 5895-01-455-3855
NSN 5910-01-451-4905
NSN 5985-00-905-6175
NSN 5996-01-217-7512
NSN 5930-01-231-6885
NSN 6240-01-068-3491
NSN 5985-01-211-2486
NSN 5930-01-079-7010
NSN 5855-01-180-2172
NSN 6685-00-238-3200
NSN 5998-00-351-3839