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 6685-00-936-6428
NSN 6610-01-040-2854
NSN 5920-00-905-4769
NSN 6240-01-013-8895
NSN 6645-01-321-7665
NSN 6240-01-566-2718
NSN 5999-00-181-4001
NSN 6610-00-290-0758
NSN 5965-01-050-3238
NSN 6145-01-120-8621
NSN 5895-01-624-7756
NSN 5855-01-190-5564