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 6620-00-709-7389
NSN 6145-01-312-4990
NSN 6240-01-361-8797
NSN 6220-01-078-1625
NSN 6650-01-142-1688
NSN 5925-00-155-2587
NSN 5930-01-437-6156
NSN 7035-01-598-8099
NSN 5925-01-196-9282
NSN 6320-01-215-1133
NSN 5915-01-175-0190
NSN 5925-00-923-3760