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 5855-01-232-9440
NSN 5910-01-435-4562
NSN 4140-01-564-0574
NSN 5975-01-495-1343
NSN 5855-01-506-6767
NSN 6130-00-305-7583
NSN 5990-01-251-0078
NSN 5965-00-275-0491
NSN 5920-00-110-7800
NSN 5999-00-862-5157
NSN 5996-00-915-3164
NSN 5835-01-250-2939