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 5945-01-044-1862
NSN 6645-00-543-6515
NSN 6150-01-406-5330
NSN 5930-01-384-3791
NSN 5996-00-207-6086
NSN 7035-01-268-8042
NSN 5945-00-914-3095
NSN 5990-01-481-3080
NSN 6150-01-527-4680
NSN 5895-00-543-1584
NSN 5945-01-483-1316
NSN 4140-01-394-5304