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 5975-01-209-8869
NSN 6650-01-056-4632
NSN 6320-01-452-2394
NSN 5915-01-014-6309
NSN 6645-00-485-9889
NSN 6685-01-084-9637
NSN 6105-01-027-1135
NSN 6130-01-319-0990
NSN 6110-01-529-7753
NSN 5905-01-627-2013
NSN 5935-01-265-5965
NSN 6620-01-541-5480