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 5930-00-977-6170
NSN 5975-01-092-8655
NSN 6150-01-640-6931
NSN 5935-01-362-5613
NSN 6145-00-147-8515
NSN 5915-01-313-3323
NSN 6645-01-287-9969
NSN 4140-01-023-1537
NSN 4140-01-025-8487
NSN 5960-01-525-1690
NSN 5905-01-332-0742
NSN 5960-01-424-1781