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 7035-01-145-5059
NSN 6105-00-478-5731
NSN 5975-00-430-8082
NSN 6145-00-799-1125
NSN 5998-00-111-3180
NSN 5975-00-615-1380
NSN 6650-01-449-3865
NSN 6320-01-411-7469
NSN 6320-00-343-1798
NSN 6645-01-616-7473
NSN 5960-01-266-1011
NSN 5985-00-528-6951