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 6610-01-431-5447
NSN 5855-00-149-0766
NSN 6685-00-557-5339
NSN 6220-01-261-0280
NSN 5945-01-449-1893
NSN 6110-00-163-6223
NSN 6130-01-346-9318
NSN 6650-01-430-4126
NSN 5930-01-208-6549
NSN 5985-01-129-9250
NSN 2925-01-416-6927
NSN 6135-01-142-2417