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 5855-00-436-3852
NSN 2925-00-740-7029
NSN 6610-01-532-8734
NSN 5855-01-451-1163
NSN 6685-00-394-8788
NSN 6610-00-322-9686
NSN 5930-00-504-0151
NSN 6320-01-283-1300
NSN 6620-00-130-0815
NSN 6645-01-487-8227
NSN 5996-00-804-2698
NSN 6685-00-658-7295