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 5895-00-738-8406
NSN 5895-00-175-4168
NSN 5990-01-413-2405
NSN 4140-00-419-0631
NSN 5965-01-318-0758
NSN 5910-00-171-3414
NSN 6145-01-504-2583
NSN 5985-00-837-8534
NSN 6105-00-728-8612
NSN 5915-01-085-6528
NSN 5999-00-411-8602
NSN 5835-01-412-6901