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 6685-00-223-9042
NSN 5990-01-187-8594
NSN 6650-01-217-9304
NSN 5945-01-265-3985
NSN 6135-01-395-4114
NSN 5910-01-265-3942
NSN 5999-01-511-7295
NSN 5895-00-203-2379
NSN 5950-00-556-9351
NSN 4140-01-602-9257
NSN 6320-01-365-2701
NSN 6105-01-627-6255