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 6220-00-303-8415
NSN 6650-01-455-7562
NSN 5855-01-462-0495
NSN 5930-01-396-0196
NSN 5895-00-863-6437
NSN 5905-01-314-3020
NSN 5960-01-613-6113
NSN 6320-01-583-6809
NSN 5985-00-403-6811
NSN 6135-01-189-5567
NSN 6150-00-268-3659
NSN 5985-01-437-7738