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 5999-00-892-3872
NSN 7035-00-763-6180
NSN 5925-01-087-7560
NSN 7035-00-329-4015
NSN 4140-01-255-0282
NSN 6645-00-258-7370
NSN 6650-01-514-7809
NSN 5998-01-523-2967
NSN 5895-01-298-0380
NSN 6645-01-270-3176
NSN 5985-01-647-3401
NSN 6145-00-632-8674