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 6150-01-394-3308
NSN 5985-00-711-9508
NSN 7035-01-024-9511
NSN 6150-01-281-7279
NSN 5975-00-601-2407
NSN 7035-00-312-3055
NSN 6320-00-553-8427
NSN 5910-01-377-0973
NSN 5999-01-080-2113
NSN 7035-00-162-5487
NSN 7035-00-585-2113
NSN 6685-00-248-6990