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 6645-01-353-6863
NSN 5930-01-488-3987
NSN 5905-01-493-8691
NSN 5930-01-089-0828
NSN 6150-01-025-7338
NSN 6220-01-432-1837
NSN 5915-00-338-2556
NSN 5855-01-003-7102
NSN 6645-00-130-8464
NSN 6130-01-360-7218
NSN 6610-01-552-8842
NSN 6685-01-606-9171