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 5945-00-930-1490
NSN 5960-00-215-5884
NSN 5835-01-286-6499
NSN 6150-01-053-9375
NSN 5950-00-522-9618
NSN 6150-01-433-3230
NSN 6610-01-543-3753
NSN 5998-00-131-2760
NSN 5910-00-159-7786
NSN 5950-00-441-5126
NSN 5996-01-377-0577
NSN 6135-01-223-3869