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 5905-01-452-0959
NSN 5945-01-430-2222
NSN 5915-01-380-3228
NSN 5905-00-681-6894
NSN 5920-01-024-9190
NSN 5905-01-025-1329
NSN 5965-01-351-6977
NSN 5855-01-339-1718
NSN 5920-00-229-8444
NSN 6240-01-579-3213
NSN 5905-01-251-2464
NSN 5920-00-583-8674