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 5998-00-911-0916
NSN 5855-00-548-4742
NSN 5998-00-222-1248
NSN 5990-01-268-2236
NSN 5985-01-645-6303
NSN 6620-00-601-3885
NSN 6110-00-502-2391
NSN 6110-00-838-0492
NSN 5930-01-474-5487
NSN 5950-00-327-6109
NSN 5835-00-794-7500
NSN 5910-01-003-7842