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 5996-01-456-7399
NSN 6685-01-420-8497
NSN 5855-00-928-1912
NSN 6650-01-382-8569
NSN 5950-01-432-8661
NSN 6240-01-197-0489
NSN 6240-01-058-1777
NSN 6135-01-128-5358
NSN 4140-01-644-7702
NSN 5990-01-282-0570
NSN 6620-01-558-6558
NSN 5920-00-345-5833