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 6105-01-353-2526
NSN 5855-01-512-1926
NSN 6685-01-620-1317
NSN 5975-00-228-7967
NSN 5965-01-432-7134
NSN 5975-01-615-8681
NSN 5915-01-005-0164
NSN 6130-01-321-9517
NSN 5915-01-459-8059
NSN 7035-00-973-9215
NSN 5950-00-489-2900
NSN 6105-01-617-5860