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 6145-01-411-8023
NSN 6620-00-405-4621
NSN 5855-01-578-7848
NSN 5990-01-512-9129
NSN 5945-01-483-1316
NSN 6685-00-270-3276
NSN 6320-01-373-5287
NSN 5930-01-418-4887
NSN 5930-01-042-9332
NSN 5985-01-237-3788
NSN 5910-00-452-8873
NSN 6620-00-883-1181