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 5950-00-959-3285
NSN 5930-01-273-2191
NSN 6240-01-044-5049
NSN 6135-01-384-3915
NSN 6145-01-429-8514
NSN 2925-01-330-2988
NSN 5950-00-543-9742
NSN 5895-00-894-0894
NSN 6220-01-170-4650
NSN 5935-01-010-8577
NSN 5935-00-265-0705
NSN 5910-01-306-8747