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 5996-01-609-1891
NSN 6645-00-848-8490
NSN 5935-01-504-9696
NSN 6105-00-141-0300
NSN 6685-00-489-0790
NSN 5915-01-509-7206
NSN 5945-00-932-3335
NSN 5990-01-559-0578
NSN 5990-01-612-5323
NSN 5985-01-462-1845
NSN 5910-00-161-4058
NSN 5920-01-359-1197