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 2925-01-264-5256
NSN 6620-01-119-3396
NSN 5855-01-201-4857
NSN 5975-00-247-1230
NSN 6685-00-250-0633
NSN 5999-00-542-0541
NSN 6130-01-447-6976
NSN 6220-01-470-0023
NSN 6110-01-101-1181
NSN 5945-01-391-7993
NSN 5945-01-092-6087
NSN 5920-00-442-8356