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 4140-01-331-5592
NSN 7035-00-488-9765
NSN 6110-00-569-8930
NSN 5975-01-203-0263
NSN 5950-01-503-0747
NSN 2925-00-215-4954
NSN 6130-01-028-2900
NSN 6610-01-138-1727
NSN 5999-00-102-9554
NSN 6645-00-300-0401
NSN 6135-01-468-6491
NSN 5915-01-191-5334