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 6105-01-620-2777
NSN 5905-01-313-2343
NSN 5975-01-444-3602
NSN 5950-01-640-8231
NSN 5920-01-025-1618
NSN 6110-01-659-1548
NSN 5996-00-294-2363
NSN 6135-01-326-2536
NSN 6105-01-122-4040
NSN 6130-01-023-9444
NSN 5999-01-199-1940
NSN 6110-00-871-6429