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 5910-01-470-4699
NSN 6620-00-967-9684
NSN 2925-01-309-5007
NSN 6150-01-575-9843
NSN 6240-00-364-0850
NSN 6620-01-136-4473
NSN 5975-01-431-1399
NSN 5895-01-634-0630
NSN 5930-01-391-6557
NSN 5950-00-241-0121
NSN 6320-00-270-8222
NSN 5965-00-801-7410