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 6220-01-492-0563
NSN 5975-01-181-6212
NSN 6110-00-412-2305
NSN 7035-01-140-2019
NSN 5985-01-391-9103
NSN 5950-01-603-6844
NSN 5945-00-098-9602
NSN 5930-01-492-1722
NSN 6610-00-606-8597
NSN 5855-01-167-2162
NSN 6150-01-303-4679
NSN 5925-01-066-6227