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 5950-01-647-7038
NSN 6620-00-815-2281
NSN 6105-01-171-6014
NSN 5925-01-110-1918
NSN 6620-01-434-3675
NSN 5915-00-005-7140
NSN 5920-00-345-5833
NSN 6685-01-398-4172
NSN 6135-01-442-0890
NSN 6220-01-110-6046
NSN 6610-00-005-4452
NSN 6220-01-539-5242