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 6130-01-261-6861
NSN 5930-00-960-7223
NSN 5998-00-053-9965
NSN 5905-00-526-9582
NSN 6685-01-375-4774
NSN 5975-01-485-3296
NSN 5975-01-343-6073
NSN 2925-00-504-2363
NSN 5930-01-058-3763
NSN 5960-00-688-9125
NSN 7035-00-155-9513
NSN 5910-01-411-3545