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 6685-00-923-4177
NSN 6645-00-079-1430
NSN 5925-01-263-1968
NSN 5945-01-579-3212
NSN 5915-01-392-1184
NSN 6135-01-422-0140
NSN 5999-01-354-9830
NSN 6620-00-246-5159
NSN 6645-00-459-3313
NSN 6645-01-582-2601
NSN 5998-01-580-1974
NSN 5925-01-559-7421