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 6320-01-339-9974
NSN 6105-01-465-3463
NSN 6130-01-419-5611
NSN 5965-00-328-6884
NSN 6130-01-559-1732
NSN 5930-00-973-9101
NSN 5999-01-026-6777
NSN 5915-01-543-5833
NSN 5905-01-415-5116
NSN 5965-01-487-4479
NSN 7035-01-542-3276
NSN 6145-01-442-8143