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 6220-01-254-4704
NSN 5915-01-268-0930
NSN 5835-01-442-6482
NSN 7035-00-946-2642
NSN 5925-01-276-0456
NSN 6145-01-439-0620
NSN 5965-01-460-1276
NSN 6135-01-071-4923
NSN 6220-01-200-6461
NSN 6650-00-216-6365
NSN 6320-01-207-0636
NSN 5920-00-701-1200