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 6145-00-913-2452
NSN 6105-00-975-2985
NSN 6650-01-487-2597
NSN 5975-01-211-2431
NSN 5925-00-855-6724
NSN 5895-01-653-3174
NSN 5960-01-649-1341
NSN 6645-01-025-1002
NSN 5998-01-362-3932
NSN 5835-00-673-2885
NSN 5990-01-074-6549
NSN 2925-00-442-0974