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 5930-01-141-2697
NSN 5855-01-622-1516
NSN 5996-01-116-4670
NSN 5996-00-505-3693
NSN 5950-01-520-9677
NSN 5925-00-491-2363
NSN 5975-01-052-3489
NSN 5990-00-469-2604
NSN 5855-01-027-8414
NSN 4140-00-463-4276
NSN 5975-01-068-3043
NSN 5998-01-332-4414