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 7035-01-029-7221
NSN 5930-01-009-2015
NSN 5905-01-382-6965
NSN 5998-01-423-8156
NSN 5975-00-616-8907
NSN 5930-00-100-0163
NSN 6610-01-326-0119
NSN 5855-01-428-9456
NSN 5910-01-265-6880
NSN 6645-01-414-8806
NSN 5950-01-359-1997
NSN 5895-00-021-6960