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 5835-00-491-3834
NSN 5990-00-328-4490
NSN 5855-00-361-0167
NSN 4140-00-985-0182
NSN 5996-00-409-2063
NSN 5990-01-027-0568
NSN 5990-01-242-9653
NSN 6130-00-179-9948
NSN 5925-00-111-1969
NSN 6105-00-484-9270
NSN 6220-00-660-5539
NSN 6610-01-358-5102