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 5990-01-623-0082
NSN 6650-00-751-9958
NSN 5999-01-127-9603
NSN 5935-00-899-0318
NSN 5960-00-597-2680
NSN 6610-00-468-1958
NSN 5905-00-610-3290
NSN 6620-01-302-1537
NSN 5975-00-073-7109
NSN 6685-01-320-5672
NSN 6610-01-426-5090
NSN 6610-01-273-7204