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 6130-01-195-0773
NSN 6620-01-383-1997
NSN 2925-01-406-7837
NSN 5950-00-858-7229
NSN 5835-01-274-1035
NSN 5915-01-562-0632
NSN 6685-00-432-3576
NSN 5990-01-320-1412
NSN 5960-00-811-1258
NSN 5895-01-436-1780
NSN 6685-01-146-8007
NSN 5965-00-445-1843