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 5985-00-960-9086
NSN 5985-01-117-0272
NSN 6105-00-952-0622
NSN 5935-01-025-3516
NSN 6685-01-562-3467
NSN 6610-01-507-4356
NSN 5950-00-814-7146
NSN 6135-00-542-6728
NSN 5920-00-469-8051
NSN 4140-00-812-6330
NSN 5915-01-614-7157
NSN 6610-00-284-3093