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 5950-01-173-7342
NSN 5985-01-502-9782
NSN 5975-00-421-6528
NSN 5925-01-474-6615
NSN 5935-01-100-4175
NSN 5996-01-177-2848
NSN 6610-01-273-7204
NSN 6610-00-720-8775
NSN 5915-01-415-2477
NSN 5965-01-120-6086
NSN 6620-00-292-7000
NSN 5835-01-091-2553