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 6150-01-165-2089
NSN 6685-00-849-7975
NSN 4140-00-132-5191
NSN 5965-01-171-9796
NSN 5920-00-023-1909
NSN 2925-01-599-1901
NSN 4140-01-384-3998
NSN 5965-01-396-7508
NSN 5950-01-479-4473
NSN 5895-01-322-6485
NSN 6610-01-516-1512
NSN 6685-01-535-7268