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 5920-01-202-7166
NSN 5990-01-474-3477
NSN 5965-01-449-1101
NSN 5960-01-370-4285
NSN 5915-00-983-4998
NSN 5915-00-018-1282
NSN 6645-00-321-6071
NSN 6105-01-344-7302
NSN 5910-01-190-5522
NSN 6645-01-314-1776
NSN 5925-01-052-3345
NSN 5855-00-318-7185