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 6105-01-443-2980
NSN 5915-01-095-4853
NSN 5999-01-304-2919
NSN 6220-01-288-7208
NSN 5985-01-534-3836
NSN 5996-01-184-5035
NSN 5999-00-584-4577
NSN 5915-01-470-8879
NSN 5975-01-545-9352
NSN 5855-01-421-6483
NSN 5985-01-634-0635
NSN 6685-00-203-4485