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 2925-00-942-2417
NSN 7035-01-353-6861
NSN 6240-01-650-1161
NSN 6645-00-099-6913
NSN 5945-01-007-8132
NSN 5975-01-245-5929
NSN 6240-01-225-9508
NSN 5975-01-303-5095
NSN 6620-00-176-5722
NSN 6110-01-431-8889
NSN 5975-01-215-1205
NSN 2925-01-068-3844