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 6645-01-029-4525
NSN 5985-00-562-4310
NSN 5835-01-005-0763
NSN 5990-01-243-4233
NSN 6130-01-611-9969
NSN 6645-01-131-4328
NSN 6610-01-498-4063
NSN 4140-00-690-5288
NSN 5925-00-146-5683
NSN 5985-01-381-7469
NSN 6320-01-512-2031
NSN 5998-00-523-9848