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 5925-01-561-0733
NSN 7035-01-392-9838
NSN 7035-01-432-2424
NSN 6110-00-378-8458
NSN 6645-00-963-9491
NSN 6645-00-310-5839
NSN 5935-01-468-1635
NSN 5999-01-394-5186
NSN 6685-01-023-2166
NSN 5925-00-403-4061
NSN 6320-00-925-0558
NSN 6130-00-074-4112