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 5855-01-398-9548
NSN 5895-01-207-0753
NSN 6110-01-360-6808
NSN 6620-01-254-7963
NSN 5905-01-563-8147
NSN 5990-00-620-1137
NSN 5975-00-204-9190
NSN 5910-01-205-4749
NSN 5998-01-157-8244
NSN 5965-01-502-7006
NSN 5915-01-147-7772
NSN 5999-01-537-8974