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 6130-01-468-4973
NSN 6610-00-988-9294
NSN 4140-01-354-7907
NSN 5950-01-423-1742
NSN 5920-00-862-5820
NSN 5910-01-109-1864
NSN 6610-01-205-4589
NSN 6135-00-334-4500
NSN 5996-00-781-8993
NSN 6135-01-412-0404
NSN 5975-01-275-6910
NSN 5960-01-170-4057