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 5999-01-065-7240
NSN 5998-01-389-6585
NSN 6620-01-464-3087
NSN 5985-01-610-2961
NSN 5999-00-297-6710
NSN 6685-00-787-8594
NSN 7035-01-145-5059
NSN 5920-01-530-5504
NSN 6110-00-596-9124
NSN 6620-00-838-6954
NSN 6105-01-474-8605
NSN 5855-01-325-9507