W/2 grooves, bearing surface 2nd hole spaced 75 degrees cw from 2nd hole on 3.375 in. Bolt circle
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 6685-01-129-3129
NSN 6320-00-393-0138
NSN 5965-01-247-0837
NSN 6105-00-051-9038
NSN 4140-01-425-7955
NSN 6110-00-195-1956
NSN 5998-01-234-8094
NSN 6610-00-490-9514
NSN 6620-01-147-0441
NSN 5998-01-332-6093
NSN 5996-01-280-9922
NSN 5925-01-422-0431