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 5835-01-519-1153
NSN 5975-01-107-8345
NSN 5925-01-085-5767
NSN 5920-01-013-8594
NSN 2925-00-923-4397
NSN 5925-00-933-9286
NSN 2925-01-259-7092
NSN 6105-01-391-2042
NSN 6685-01-259-4425
NSN 5996-01-495-0763
NSN 5950-01-620-6718
NSN 6110-01-343-4538