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 5998-00-945-7447
NSN 5960-01-437-7422
NSN 5985-01-457-7716
NSN 7035-01-306-5226
NSN 6620-01-508-7902
NSN 7035-00-104-7613
NSN 2925-00-906-0421
NSN 6610-01-512-3248
NSN 5920-00-249-6414
NSN 5855-00-247-7219
NSN 5855-00-532-0025
NSN 5930-01-441-1289