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 4140-00-594-4452
NSN 6130-01-057-2610
NSN 5985-01-057-2746
NSN 6645-01-510-4815
NSN 5960-01-165-1956
NSN 5950-00-113-5994
NSN 5965-01-502-7006
NSN 2925-01-204-6243
NSN 6220-01-304-0855
NSN 5855-00-879-7245
NSN 5915-01-158-0176
NSN 5910-00-251-1446