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 6150-00-389-4118
NSN 6110-01-525-2223
NSN 5990-00-339-2084
NSN 5975-01-251-1544
NSN 5930-00-209-1076
NSN 5835-01-442-6482
NSN 5925-01-018-1375
NSN 5965-00-862-3295
NSN 6650-01-170-5440
NSN 6320-01-265-0665
NSN 6645-00-654-8804
NSN 2925-01-348-8306