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 5990-01-522-6096
NSN 5999-01-447-2757
NSN 5999-00-267-9952
NSN 2925-01-342-1712
NSN 5975-01-261-6328
NSN 5835-01-027-1828
NSN 5999-01-308-6340
NSN 5998-00-770-0345
NSN 5920-01-400-3562
NSN 6145-00-955-1993
NSN 5990-01-498-0641
NSN 5975-01-296-1452