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 5945-01-437-5611
NSN 5965-01-130-9214
NSN 6110-00-876-1995
NSN 6685-00-458-8001
NSN 5998-00-299-1475
NSN 6145-01-111-2876
NSN 5855-00-004-0904
NSN 5905-00-233-7365
NSN 5990-01-061-5618
NSN 4140-00-383-8230
NSN 6645-01-408-6568
NSN 5975-01-450-7176