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 5915-00-510-6028
NSN 6105-00-553-1458
NSN 6685-01-205-7207
NSN 5915-01-054-3788
NSN 5930-00-150-8635
NSN 5990-01-408-6554
NSN 6320-01-116-3980
NSN 6620-01-413-1951
NSN 5985-01-125-3467
NSN 5999-00-383-3381
NSN 5855-01-236-9645
NSN 6620-01-605-1465