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 5915-01-532-2057
NSN 5996-00-117-4189
NSN 2925-00-176-3889
NSN 5950-00-584-4571
NSN 5999-00-141-0222
NSN 6135-01-070-3865
NSN 6240-01-150-2712
NSN 5950-01-463-3096
NSN 4140-01-567-6073
NSN 7035-01-521-3449
NSN 6135-00-935-8769
NSN 5960-01-069-8028