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 5945-00-944-1650
NSN 6645-01-096-4270
NSN 5960-01-443-3067
NSN 7035-01-555-8793
NSN 5960-01-170-4057
NSN 6685-01-380-8690
NSN 5920-01-258-5035
NSN 5855-00-167-7893
NSN 6240-01-142-2963
NSN 5930-01-441-9282
NSN 5996-00-112-4588
NSN 6650-01-428-9958