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 7035-00-052-2188
NSN 5835-01-205-6614
NSN 5996-00-720-3064
NSN 5996-01-602-6953
NSN 6610-00-400-1252
NSN 5930-01-128-2258
NSN 6220-01-353-9026
NSN 5945-01-446-4534
NSN 6105-01-276-7881
NSN 5915-01-412-0572
NSN 5960-01-308-9528
NSN 5855-00-149-0766