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 5920-01-097-9927
NSN 6620-01-115-1307
NSN 6650-01-142-1688
NSN 5950-01-003-8636
NSN 6620-00-932-6508
NSN 5990-00-738-5603
NSN 7035-00-753-0695
NSN 6645-01-229-3369
NSN 5835-01-462-5983
NSN 6610-01-524-7068
NSN 6240-01-049-4539
NSN 5835-00-350-3703