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 6650-01-259-1761
NSN 5920-00-170-4247
NSN 5920-01-374-1104
NSN 6320-01-229-6479
NSN 6320-01-414-3515
NSN 2925-01-453-1606
NSN 6610-01-128-7748
NSN 5925-00-118-2464
NSN 5950-00-009-8205
NSN 5996-01-444-1488
NSN 6105-01-296-6179
NSN 6145-01-056-5515