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 6150-00-230-1745
NSN 6650-01-234-7012
NSN 5965-00-372-2537
NSN 6320-00-701-0437
NSN 6685-01-547-3484
NSN 5905-01-646-2901
NSN 5960-01-324-6464
NSN 6620-01-111-9064
NSN 5835-00-978-9679
NSN 5935-01-054-7473
NSN 5895-01-022-4130
NSN 7035-01-373-5972