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 6220-01-201-4379
NSN 4140-01-372-6078
NSN 5996-01-336-1479
NSN 5835-00-034-4976
NSN 5920-01-146-9154
NSN 6135-00-027-3914
NSN 6320-01-029-4220
NSN 5975-00-231-2985
NSN 6685-01-645-8001
NSN 5975-01-212-5767
NSN 6110-01-226-4681
NSN 4140-01-451-4180