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 6135-01-435-8451
NSN 6645-01-038-6978
NSN 5960-01-614-8005
NSN 6240-01-528-7108
NSN 5935-01-360-5994
NSN 5920-01-092-0545
NSN 5950-00-299-7851
NSN 5990-00-848-8870
NSN 6110-01-502-8224
NSN 7035-01-451-3328
NSN 5915-00-482-0926
NSN 6685-01-116-4526