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 5998-01-648-2656
NSN 5965-01-282-6085
NSN 5920-01-550-1507
NSN 6645-00-242-0480
NSN 6685-00-847-0010
NSN 5910-00-139-3364
NSN 6110-01-192-6325
NSN 6110-00-226-3148
NSN 5905-00-189-9138
NSN 6105-00-267-6954
NSN 5960-00-905-2718
NSN 5990-00-295-0968