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 5960-00-234-5961
NSN 6130-01-129-5495
NSN 5910-01-557-4271
NSN 5910-01-213-1328
NSN 2925-00-284-1534
NSN 7035-00-421-8710
NSN 6620-01-165-1033
NSN 6145-01-480-3524
NSN 6320-00-213-0477
NSN 5996-01-092-9262
NSN 4140-01-428-2509
NSN 6620-00-045-8134