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 5999-00-473-2706
NSN 6145-00-071-1927
NSN 6110-01-428-9143
NSN 5895-00-176-5545
NSN 6110-01-177-1465
NSN 5915-00-025-1763
NSN 5920-01-351-2193
NSN 6145-01-392-1116
NSN 6135-00-078-9931
NSN 5915-01-065-9775
NSN 7035-01-029-7221
NSN 4140-01-383-4738