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 6685-01-512-8831
NSN 5985-01-530-9737
NSN 6650-01-338-3823
NSN 6320-01-443-6975
NSN 5945-01-312-7522
NSN 6105-01-581-8963
NSN 5915-00-410-4164
NSN 5965-01-215-3184
NSN 5945-01-025-1163
NSN 6645-00-071-2200
NSN 5930-01-223-8597
NSN 4140-00-864-7743