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 5985-01-268-8430
NSN 6145-00-952-2872
NSN 6150-01-260-8727
NSN 5975-00-202-5013
NSN 6320-00-456-0836
NSN 5996-00-479-1753
NSN 6145-00-557-0194
NSN 6650-01-197-0587
NSN 6240-01-484-4288
NSN 6685-00-062-6199
NSN 6220-00-224-3036
NSN 2925-01-041-2360