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 6135-00-728-9860
NSN 6130-00-226-0417
NSN 6220-01-491-0236
NSN 7035-01-603-7875
NSN 6110-00-064-7005
NSN 5930-01-450-3320
NSN 6145-01-485-4463
NSN 6130-01-070-8090
NSN 2925-00-626-5027
NSN 6610-01-462-5980
NSN 5945-00-502-9644
NSN 5920-00-199-9498