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 5895-01-422-1644
NSN 7035-01-535-1450
NSN 6145-01-098-3043
NSN 6685-00-912-1847
NSN 6110-00-924-1145
NSN 5985-01-380-6034
NSN 6220-00-202-8591
NSN 2925-01-394-9658
NSN 5905-01-068-3631
NSN 5910-00-288-5979
NSN 6650-00-550-6111
NSN 6685-01-406-7841