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 6145-00-299-7757
NSN 5895-01-661-0119
NSN 5855-01-342-3824
NSN 2925-01-068-3844
NSN 5999-00-757-8986
NSN 5915-01-185-0198
NSN 5985-01-190-0773
NSN 2925-01-544-3018
NSN 5945-00-879-8306
NSN 6650-00-590-9073
NSN 6685-00-500-6933
NSN 5965-00-849-1313