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 2925-00-845-1480
NSN 6650-01-232-0275
NSN 6685-01-373-5767
NSN 6240-01-250-3574
NSN 5935-01-507-1541
NSN 6645-01-160-7707
NSN 6130-00-266-7496
NSN 5950-01-135-7819
NSN 5895-01-112-5838
NSN 5855-01-541-5569
NSN 5910-01-176-7176
NSN 6130-00-010-1042