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 2925-00-740-7029
NSN 6130-00-089-1461
NSN 6150-01-190-8958
NSN 6220-00-361-8338
NSN 7035-00-973-9215
NSN 5965-00-412-4402
NSN 5935-00-823-6330
NSN 5835-01-346-1386
NSN 5935-01-141-1414
NSN 6650-01-054-9663
NSN 2925-01-282-3206
NSN 5925-01-292-6570