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 5950-01-257-4050
NSN 5950-00-058-7832
NSN 5910-01-415-0273
NSN 5930-00-036-0381
NSN 6240-00-688-6351
NSN 6320-00-164-4087
NSN 2925-01-448-2880
NSN 6685-00-115-2072
NSN 6220-00-823-6688
NSN 2925-00-463-7319
NSN 5930-00-079-5474
NSN 5925-01-457-9436