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 2925-01-254-3068
NSN 5945-01-444-2611
NSN 5895-01-504-0407
NSN 5950-01-296-0066
NSN 6105-01-321-5062
NSN 6220-00-394-5762
NSN 5905-00-160-1447
NSN 6650-00-170-5095
NSN 5945-00-597-8633
NSN 5910-01-091-9152
NSN 5925-00-824-9163
NSN 6620-00-470-3219