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 6620-00-135-0895
NSN 5915-01-274-7809
NSN 5930-01-125-4088
NSN 5910-01-201-1863
NSN 4140-00-198-4961
NSN 5915-00-004-4711
NSN 6645-00-664-4665
NSN 5925-01-357-5560
NSN 5975-01-265-8678
NSN 6110-01-344-6885
NSN 6105-00-942-7845
NSN 5915-00-565-0324