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 6320-01-392-6922
NSN 5996-01-207-2724
NSN 5960-01-245-6088
NSN 6610-00-150-7002
NSN 6220-01-116-1983
NSN 5990-00-862-3271
NSN 5950-00-081-2206
NSN 5985-00-666-2987
NSN 6610-00-468-1958
NSN 7035-00-445-9657
NSN 5975-00-944-1936
NSN 5996-00-019-3998