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 5835-01-384-3206
NSN 7035-01-255-2332
NSN 6240-01-276-9417
NSN 6620-00-185-1671
NSN 5985-01-046-1780
NSN 6685-00-833-8379
NSN 6150-01-498-5032
NSN 6240-01-468-5576
NSN 4140-01-571-6061
NSN 5930-01-153-2667
NSN 2925-01-577-0004
NSN 5960-00-281-0824