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 5925-00-886-5440
NSN 5855-01-634-0259
NSN 6645-01-535-0719
NSN 5855-01-273-0927
NSN 6240-01-633-9357
NSN 7035-00-406-0568
NSN 5855-01-444-1233
NSN 6320-00-322-3460
NSN 6650-01-472-2244
NSN 5998-01-634-0604
NSN 6620-00-264-8030
NSN 7035-01-494-5832