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 5960-01-425-1454
NSN 6145-00-119-8201
NSN 6620-00-663-4282
NSN 5855-01-651-3794
NSN 6610-00-255-2752
NSN 5960-01-421-0887
NSN 6220-01-014-5351
NSN 5985-00-801-0226
NSN 7035-01-610-3833
NSN 6650-00-276-9838
NSN 5920-00-594-3124
NSN 5950-01-498-5212