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 5855-01-327-6678
NSN 5935-00-156-6686
NSN 5925-01-443-8222
NSN 6130-00-089-9212
NSN 5985-00-717-8877
NSN 5895-00-120-1195
NSN 5950-01-297-6729
NSN 5855-01-255-1688
NSN 6620-01-068-4498
NSN 5930-01-655-8883
NSN 6130-00-262-3385
NSN 6130-01-426-8841