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 5985-01-508-5875
NSN 6650-01-437-8852
NSN 6150-01-208-4683
NSN 6685-01-346-2213
NSN 6645-01-172-6838
NSN 5990-01-222-8570
NSN 6685-00-133-4778
NSN 6130-00-596-9565
NSN 5925-01-381-2528
NSN 6105-01-024-2927
NSN 6320-01-592-6248
NSN 6650-01-146-5000