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 6645-00-023-8386
NSN 6320-00-483-0451
NSN 6220-00-823-6688
NSN 5990-01-373-3104
NSN 6685-01-203-9792
NSN 5835-01-286-6499
NSN 5998-00-722-8426
NSN 5895-01-371-4623
NSN 5895-00-687-1666
NSN 5910-01-070-1117
NSN 2925-00-336-8364
NSN 7035-01-306-5226