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 6685-01-393-0246
NSN 6135-01-167-0759
NSN 2925-01-032-3814
NSN 6135-01-101-5039
NSN 5910-01-388-1998
NSN 5998-01-081-4176
NSN 5905-00-314-7813
NSN 5965-01-240-0233
NSN 6135-00-152-8729
NSN 5950-01-350-3251
NSN 6620-00-081-7899
NSN 6135-01-413-4747