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 5930-01-398-0083
NSN 5925-00-563-5720
NSN 6620-00-789-1638
NSN 5965-01-459-4345
NSN 5930-01-303-0979
NSN 6150-01-485-5010
NSN 5950-01-521-3675
NSN 6685-01-502-5812
NSN 6220-00-617-9616
NSN 5905-00-898-4289
NSN 2925-01-618-5706
NSN 5915-00-118-8054