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 5998-01-490-7017
NSN 6130-01-020-8186
NSN 6150-01-106-3646
NSN 4140-01-231-3547
NSN 6150-01-182-4955
NSN 5905-01-599-1720
NSN 4140-01-260-4156
NSN 5920-00-556-7817
NSN 5910-01-207-3566
NSN 6650-01-534-5787
NSN 6685-00-575-4647
NSN 5950-01-094-5930