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 5895-01-464-3223
NSN 6220-00-890-1437
NSN 5910-01-085-6434
NSN 5945-00-614-0539
NSN 5910-01-387-0145
NSN 5999-01-065-8124
NSN 5985-01-010-3853
NSN 6105-00-527-2193
NSN 5835-01-156-5622
NSN 6620-01-210-9002
NSN 5965-00-113-2657
NSN 5945-01-150-0236