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 7035-01-271-1643
NSN 5895-00-251-3514
NSN 5975-01-643-2465
NSN 5975-01-166-3324
NSN 4140-00-955-9019
NSN 5960-00-706-5075
NSN 5975-00-682-4391
NSN 5855-01-157-7186
NSN 2925-01-180-2960
NSN 5920-01-605-3232
NSN 5965-00-928-6983
NSN 5965-01-503-1402