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 5960-01-416-6187
NSN 6150-01-230-1435
NSN 6220-01-279-4281
NSN 5920-00-369-0631
NSN 5935-00-311-4206
NSN 5965-00-529-0602
NSN 6130-01-344-2342
NSN 5855-00-797-8217
NSN 6610-01-365-0971
NSN 7035-00-349-8571
NSN 6685-01-188-7379
NSN 6145-00-209-5657