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 5910-01-471-6819
NSN 7035-01-652-8586
NSN 4140-00-170-5152
NSN 5999-00-536-9277
NSN 5999-01-222-6180
NSN 5996-00-079-0384
NSN 6320-01-319-3584
NSN 6110-01-029-9414
NSN 5975-00-084-5264
NSN 6110-00-428-8106
NSN 5915-01-461-6999
NSN 5960-01-106-3086