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 2925-01-633-4048
NSN 5996-00-221-7663
NSN 5975-01-391-7176
NSN 6150-01-573-9466
NSN 4140-01-627-4357
NSN 6110-01-127-7264
NSN 5910-00-612-8464
NSN 5915-00-961-1649
NSN 6685-01-263-0631
NSN 5990-00-063-9160
NSN 6685-01-410-7583
NSN 5920-00-925-2639