Bearing surface holes are 0.125 in. Deep on a 1.375 in. Bolt circle, w/4 grooves
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 4140-00-724-1296
NSN 4140-00-885-5958
NSN 5905-01-193-1480
NSN 6650-01-134-3644
NSN 5960-01-478-9493
NSN 5895-00-415-7162
NSN 5945-01-529-1994
NSN 5935-00-290-1778
NSN 6135-01-142-6456
NSN 5935-01-554-9332
NSN 5835-01-143-9143
NSN 5996-01-578-7964