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 5930-01-226-6830
NSN 5930-00-905-8265
NSN 4140-01-359-2895
NSN 5910-00-331-4040
NSN 6650-01-413-3825
NSN 6145-01-525-8140
NSN 6220-01-504-5517
NSN 5950-01-025-4751
NSN 6320-01-350-0320
NSN 5950-01-290-7755
NSN 5835-01-257-0154
NSN 5925-01-655-4865