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 6150-01-339-4847
NSN 6150-00-481-3708
NSN 6135-00-455-2425
NSN 5965-00-934-3495
NSN 5998-00-462-0215
NSN 5965-00-150-1144
NSN 5985-00-959-7190
NSN 6645-01-055-5465
NSN 5920-01-153-7235
NSN 6105-00-280-2808
NSN 5960-00-081-3712
NSN 5920-00-981-5803