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 5895-00-729-5479
NSN 5835-01-385-0579
NSN 6130-00-871-3690
NSN 5990-01-357-6175
NSN 6610-00-122-6625
NSN 5930-01-257-0543
NSN 5925-01-041-4746
NSN 5945-00-622-9906
NSN 6650-00-035-9297
NSN 6620-01-202-7415
NSN 5920-00-686-0374
NSN 6145-01-566-1989