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 6145-00-239-8393
NSN 5996-00-161-4202
NSN 6130-01-327-9492
NSN 6645-01-359-1487
NSN 2925-01-350-8372
NSN 5855-00-951-6483
NSN 5998-01-111-9821
NSN 6620-00-382-8827
NSN 6135-00-767-0331
NSN 5960-00-950-6085
NSN 6320-00-908-6841
NSN 5920-00-010-0525