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 6135-01-602-3042
NSN 5905-01-415-5116
NSN 5910-01-649-1475
NSN 5965-00-539-7778
NSN 5925-00-204-0314
NSN 6110-00-753-7677
NSN 5975-00-079-0022
NSN 6220-01-381-1793
NSN 6130-01-004-8977
NSN 5920-01-523-6799
NSN 4140-00-299-6328
NSN 5930-00-853-1943