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 6645-01-201-5802
NSN 5990-01-651-6364
NSN 6685-01-105-7439
NSN 6220-00-163-1183
NSN 6645-00-421-5287
NSN 5945-01-338-5490
NSN 6220-01-033-2082
NSN 5985-01-398-0786
NSN 5915-00-518-0851
NSN 5945-00-518-5248
NSN 5960-01-218-2858
NSN 6610-01-506-7024