13 splines equally spaced inside dia
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 5925-01-381-9573
NSN 5950-01-226-2627
NSN 5915-01-370-5367
NSN 6620-01-252-6691
NSN 5910-01-524-2834
NSN 4140-00-152-2030
NSN 6105-00-434-5622
NSN 6145-01-380-9197
NSN 6610-01-251-8860
NSN 6105-01-490-3605
NSN 6110-01-604-9806
NSN 5950-01-348-7902