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 6320-01-543-3238
NSN 6685-00-735-9111
NSN 5930-01-442-3528
NSN 6110-00-907-3351
NSN 6145-01-158-2125
NSN 5910-00-800-5054
NSN 5915-01-364-1116
NSN 5950-00-445-8531
NSN 5905-01-032-4407
NSN 6650-01-466-2704
NSN 5920-00-901-7419
NSN 6135-00-334-4500