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 5910-01-514-0041
NSN 5950-01-235-1665
NSN 5910-01-268-4486
NSN 5965-00-215-5866
NSN 5985-00-862-8110
NSN 6685-00-475-9589
NSN 2925-00-516-8841
NSN 5990-01-118-8624
NSN 5990-01-157-0441
NSN 5945-01-573-8747
NSN 6145-01-038-7043
NSN 6220-01-604-9238