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 5905-00-757-8129
NSN 5985-01-157-5879
NSN 6240-01-106-5379
NSN 6650-01-457-0980
NSN 7035-00-286-6221
NSN 5998-01-382-3775
NSN 6610-01-418-0678
NSN 6645-01-009-7678
NSN 6320-01-558-8844
NSN 6110-01-531-1083
NSN 5950-01-059-0368
NSN 5950-01-415-7145