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 5985-00-008-3270
NSN 6150-00-087-9284
NSN 5996-00-351-2369
NSN 6320-01-317-3663
NSN 5965-00-996-3541
NSN 6135-01-648-4875
NSN 5965-00-463-3900
NSN 5960-00-379-4466
NSN 2925-00-891-9289
NSN 6150-01-519-9162
NSN 2925-00-234-7918
NSN 6110-01-230-5749