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 6650-01-580-5459
NSN 4140-01-582-5437
NSN 5975-01-268-4757
NSN 5855-00-821-7512
NSN 5905-01-437-9032
NSN 6110-00-340-3280
NSN 5985-00-863-7908
NSN 6645-00-300-0401
NSN 6645-00-155-2398
NSN 5975-01-075-1977
NSN 6150-01-433-0913
NSN 5960-00-195-6435