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 6130-01-400-6123
NSN 5855-00-058-1293
NSN 5990-00-928-5655
NSN 6620-01-107-2965
NSN 5895-00-114-3418
NSN 6650-00-132-3827
NSN 6150-00-283-9426
NSN 7035-01-114-8550
NSN 6130-01-423-5622
NSN 5945-01-650-1812
NSN 5975-01-536-9613
NSN 5990-01-239-1474