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 6650-01-604-9073
NSN 7035-00-003-7518
NSN 6105-00-384-1693
NSN 6645-01-463-4314
NSN 5930-01-003-8364
NSN 5975-01-175-5635
NSN 6610-01-284-3236
NSN 6240-00-876-0005
NSN 2925-00-149-0760
NSN 6130-00-813-7453
NSN 4140-00-517-7902
NSN 4140-01-025-4911