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 2925-00-105-3907
NSN 5996-01-574-8853
NSN 6145-01-413-2079
NSN 5960-01-094-7569
NSN 6240-00-948-6652
NSN 6130-00-007-0586
NSN 6240-00-361-1421
NSN 6220-01-424-3665
NSN 5930-01-555-4557
NSN 5905-01-157-9685
NSN 5950-01-511-2958
NSN 5895-00-401-9659