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 5905-00-947-5446
NSN 5965-00-871-2678
NSN 5835-01-205-6614
NSN 5950-01-224-6446
NSN 5950-01-029-4165
NSN 5910-01-207-6768
NSN 5910-01-077-3250
NSN 6105-01-180-7066
NSN 5998-00-252-7115
NSN 6320-00-433-2773
NSN 5930-01-243-0822
NSN 6145-00-840-6458