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 6145-01-485-3157
NSN 5950-01-066-2518
NSN 5925-01-510-4579
NSN 7035-00-763-6180
NSN 6145-01-423-4734
NSN 5960-01-111-5142
NSN 5996-00-159-8096
NSN 5915-00-359-7776
NSN 6150-01-214-6586
NSN 6105-01-626-5359
NSN 6620-00-766-1002
NSN 5920-01-155-7685