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 6145-01-583-8393
NSN 6110-01-235-2913
NSN 5975-00-366-7440
NSN 6650-00-650-8080
NSN 6685-01-482-9173
NSN 5930-01-545-9692
NSN 6145-01-385-6505
NSN 6130-00-187-0211
NSN 5999-00-517-4455
NSN 5990-01-277-2118
NSN 5905-00-028-5814
NSN 7035-01-307-1059