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 5990-00-893-8998
NSN 6220-01-560-6207
NSN 5975-01-222-0594
NSN 6105-01-003-9162
NSN 6105-01-005-4825
NSN 2925-01-497-1364
NSN 4140-01-224-3803
NSN 5965-00-929-9415
NSN 5960-00-139-3204
NSN 6650-01-076-6685
NSN 6220-01-469-8189
NSN 6150-00-700-6664