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 5920-00-357-0260
NSN 6320-00-931-4855
NSN 5930-00-233-5935
NSN 5855-01-321-3881
NSN 5975-01-200-2138
NSN 5855-01-428-9456
NSN 4140-01-417-3022
NSN 5895-00-115-1500
NSN 6130-01-278-7815
NSN 5965-00-181-0213
NSN 6145-00-170-4044
NSN 5930-01-596-7669