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 6320-00-539-9283
NSN 5990-01-364-1942
NSN 6645-01-646-2615
NSN 5935-00-054-5290
NSN 5910-00-826-4467
NSN 6645-00-711-5381
NSN 5999-01-071-6256
NSN 5990-00-293-6031
NSN 5925-01-228-9058
NSN 5915-00-089-9346
NSN 5999-01-555-3452
NSN 6130-01-341-8014