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 6130-01-451-9934
NSN 5999-01-464-2828
NSN 6645-01-049-0972
NSN 5910-01-571-3855
NSN 5998-01-490-4757
NSN 6145-00-468-8534
NSN 5950-01-611-3550
NSN 2925-01-082-7248
NSN 6620-01-283-1338
NSN 5950-01-221-2639
NSN 6610-00-222-3989
NSN 6220-01-342-5191