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 5985-00-977-0466
NSN 6610-00-149-1534
NSN 5905-00-413-1328
NSN 5998-00-896-6094
NSN 5835-01-116-2369
NSN 5998-01-643-5538
NSN 6135-01-230-4399
NSN 6320-01-067-0474
NSN 5945-00-881-0233
NSN 6320-00-931-4855
NSN 6320-01-445-0325
NSN 5950-01-025-2892