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 5996-00-308-6512
NSN 2925-00-927-3594
NSN 6135-00-276-7625
NSN 6620-01-456-0529
NSN 5930-01-645-1272
NSN 6620-01-587-5972
NSN 5960-01-641-5493
NSN 6650-01-183-0711
NSN 5855-01-088-3062
NSN 5835-01-301-0022
NSN 5920-01-298-8373
NSN 5930-00-115-3660