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 5930-01-535-1282
NSN 5965-01-411-9933
NSN 5998-01-248-5864
NSN 6645-01-076-4655
NSN 6650-00-266-6808
NSN 6150-00-587-7196
NSN 6220-00-188-7525
NSN 6685-01-579-2248
NSN 5965-01-308-7895
NSN 5835-01-143-9143
NSN 5996-01-213-2335
NSN 4140-00-185-9694