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 5975-00-631-3295
NSN 5935-01-134-9099
NSN 6105-01-112-5662
NSN 4140-01-543-7262
NSN 6145-01-188-5856
NSN 6685-00-138-2739
NSN 6610-01-429-7267
NSN 5905-01-114-5796
NSN 5895-00-669-8596
NSN 5950-01-512-9567
NSN 5905-01-627-2978
NSN 6620-01-014-7192