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 5925-00-626-4343
NSN 4140-00-611-8020
NSN 5895-01-120-3451
NSN 5895-01-052-7332
NSN 6220-01-334-3757
NSN 2925-01-540-4810
NSN 5835-01-632-6627
NSN 6220-01-275-0995
NSN 5915-01-562-7987
NSN 6650-00-446-8787
NSN 5925-01-344-6478
NSN 6320-01-036-2598