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 6135-00-221-4720
NSN 6620-01-534-5588
NSN 5925-00-389-6433
NSN 5990-01-623-0082
NSN 6110-00-649-9293
NSN 5975-00-919-3715
NSN 5960-00-265-0726
NSN 5985-00-288-4864
NSN 4140-00-438-2485
NSN 6620-01-177-1772
NSN 6150-01-531-0670
NSN 5996-00-804-2698