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 5930-01-003-8111
NSN 5965-00-422-5415
NSN 5915-00-153-0002
NSN 6610-01-275-9771
NSN 6220-00-482-1984
NSN 7035-00-946-2642
NSN 5985-00-059-9386
NSN 5895-00-543-2906
NSN 5905-01-502-5577
NSN 5915-01-578-3343
NSN 6650-00-442-0567
NSN 6685-01-289-0370