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 5930-00-081-9804
NSN 5910-00-659-8612
NSN 5910-01-199-9031
NSN 6620-01-408-4464
NSN 6650-01-511-4074
NSN 5990-01-443-2931
NSN 5975-00-347-9710
NSN 6320-01-501-7935
NSN 6135-00-196-5267
NSN 5855-00-930-9478
NSN 5855-00-757-5149
NSN 5935-00-986-9760