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.
New Zealand 
France 
Norway 
Greece Classification: Thrust ball bearings
NSN 6130-00-027-5186
NSN 5910-00-407-1094
NSN 6130-01-480-7871
NSN 5985-01-627-6691
NSN 5905-01-417-9201
NSN 5915-00-977-2852
NSN 6105-01-489-5374
NSN 6105-01-218-8158
NSN 5920-00-928-6721
NSN 5985-00-152-8199
NSN 6685-01-127-0364
NSN 6110-00-456-2058