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 5985-01-301-7677
NSN 5920-01-363-6554
NSN 6220-00-935-1460
NSN 6105-01-564-5316
NSN 6130-01-025-1540
NSN 2925-01-025-0082
NSN 5895-01-403-2793
NSN 5920-01-416-2133
NSN 6650-00-839-2527
NSN 6320-01-201-2776
NSN 5895-01-237-6425
NSN 6645-00-102-0015