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 6685-00-309-2970
NSN 5895-01-126-6619
NSN 5835-01-436-6549
NSN 5905-00-203-5400
NSN 5920-00-066-6885
NSN 5999-00-434-1259
NSN 5935-01-495-6775
NSN 7035-01-364-8454
NSN 5985-01-564-2319
NSN 6610-01-141-7014
NSN 6240-01-243-9997
NSN 6135-01-575-8362