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 5999-00-572-9620
NSN 6145-01-032-4557
NSN 6240-01-186-3273
NSN 7035-01-495-1090
NSN 5996-01-414-1685
NSN 6645-01-522-5144
NSN 5915-01-486-2076
NSN 6220-00-844-1722
NSN 6620-00-910-5464
NSN 5985-01-427-3734
NSN 6685-00-901-3745
NSN 5990-01-287-9447