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 2925-01-288-2091
NSN 5915-01-474-0632
NSN 5960-01-613-7945
NSN 6110-01-547-5315
NSN 6685-00-009-9363
NSN 6610-01-178-5435
NSN 6620-00-431-3837
NSN 6685-01-189-7208
NSN 6145-01-600-7306
NSN 5925-01-245-2596
NSN 6320-00-369-7796
NSN 5895-00-580-0842