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 5975-01-559-8399
NSN 6320-01-067-0474
NSN 5915-01-369-4719
NSN 6110-01-090-0804
NSN 5835-01-122-9657
NSN 7035-01-244-9179
NSN 5990-00-761-3754
NSN 5835-01-558-9444
NSN 6145-01-656-1967
NSN 6240-01-338-6045
NSN 5905-01-576-9362
NSN 7035-01-626-7763