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 5905-01-474-5173
NSN 5990-00-406-4991
NSN 6150-01-100-0932
NSN 5935-01-528-7592
NSN 5990-00-163-4173
NSN 7035-00-478-4596
NSN 5925-01-451-2571
NSN 5945-01-562-3292
NSN 2925-01-560-4123
NSN 6110-01-216-6339
NSN 5915-00-299-0192
NSN 5975-00-480-0114