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 6645-01-228-8128
NSN 6110-01-024-9428
NSN 6650-01-060-1734
NSN 5925-01-145-4565
NSN 7035-01-114-8550
NSN 6320-00-857-4073
NSN 4140-00-554-3915
NSN 5930-00-352-8778
NSN 6645-00-163-9580
NSN 5996-01-576-9852
NSN 5950-01-149-7020
NSN 6685-00-983-9408