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 7035-01-348-5153
NSN 5925-01-172-0036
NSN 6135-01-205-5965
NSN 6650-01-461-7713
NSN 6320-01-406-9951
NSN 6145-00-144-0918
NSN 6645-01-160-4256
NSN 5835-00-233-6327
NSN 5985-01-266-7913
NSN 5975-01-446-3228
NSN 5990-01-525-1674
NSN 5975-01-395-1226