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 5905-00-081-0186
NSN 6220-00-127-6676
NSN 5960-01-391-8860
NSN 6620-00-273-8735
NSN 7035-01-528-7870
NSN 5895-01-261-9100
NSN 5950-01-397-4729
NSN 5915-01-286-2416
NSN 6105-01-609-0358
NSN 4140-00-942-7159
NSN 6240-00-495-6763
NSN 6105-00-246-5311