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 5910-00-710-4172
NSN 5945-00-504-8993
NSN 5975-00-565-7593
NSN 5945-01-176-0048
NSN 5960-01-377-1907
NSN 5935-01-435-0994
NSN 6145-01-133-3478
NSN 6610-00-285-2266
NSN 6685-01-018-0079
NSN 6620-00-936-3463
NSN 6105-01-263-2008
NSN 5895-01-403-2793