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 5910-01-250-1168
NSN 6610-00-740-7103
NSN 6240-01-519-0507
NSN 5985-01-025-2345
NSN 4140-01-462-0268
NSN 6685-00-404-8444
NSN 5920-01-510-3933
NSN 6135-01-163-0332
NSN 6105-00-617-5490
NSN 5920-01-581-9478
NSN 5990-00-382-5885
NSN 6150-01-156-8264