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 6645-00-445-8143
NSN 5985-01-104-4324
NSN 5930-01-459-7775
NSN 5965-00-529-0602
NSN 5935-01-417-9282
NSN 5975-01-172-8378
NSN 5895-00-474-6336
NSN 5998-01-299-0349
NSN 6135-00-368-5578
NSN 5996-00-199-0073
NSN 6620-01-535-0070
NSN 5920-01-433-1668