Four groove each side
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 5945-01-569-1516
NSN 6240-01-158-0402
NSN 5910-00-149-2016
NSN 5905-00-282-6853
NSN 6145-01-386-7073
NSN 5999-00-558-7305
NSN 5895-00-781-5420
NSN 5950-01-449-3502
NSN 6650-01-255-6975
NSN 6135-01-296-1860
NSN 5925-00-387-3956
NSN 5835-00-275-0584